CN2207897Y - Concentric multi-grade drill - Google Patents
Concentric multi-grade drill Download PDFInfo
- Publication number
- CN2207897Y CN2207897Y CN 95200358 CN95200358U CN2207897Y CN 2207897 Y CN2207897 Y CN 2207897Y CN 95200358 CN95200358 CN 95200358 CN 95200358 U CN95200358 U CN 95200358U CN 2207897 Y CN2207897 Y CN 2207897Y
- Authority
- CN
- China
- Prior art keywords
- drill
- drilling rod
- diameter
- drilling
- drill lip
- 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 discloses a concentric multi-grade driller for drilling holes with different diameters, which comprises a drill shank (1), a drilling rod (5) with two stages different diameters and a bit edge (4) or a bit edge (6) with three stages different diameters and a drilling rod (7). When the utility model is used for drilling and threading, one process can complete the task of drilling a basic hole, expanding a basic hole to a screw diameter and expanding the basic hole to a screw cap diameter, and the task originally needs two or three processes to be completed. The work efficiency and the qualification rate are enhanced.
Description
The utility model relates to a kind of multistage brill that can drill through the different-diameter concentric holes.
The drill bit that uses has the standard fluted drill at present, and cross section is the row Lip river of " △ " shape and bores, and is used in the Ni Zhifu drill on the Digit Control Machine Tool.These drill bits are when being used in drilling and tapping, all exist and use limitation and deficiency, during with above-mentioned bit bore tapping, the basic operation step gathers: the subdrilling datum hole, and the tapping of datum hole bottom expands datum hole top to used screw diameter again, when the silk cap of screw need sink to parts, then need use the drill bit reaming again greater than silk cap diameter, general like this tapping hole needs two step operations, change the drill bit of twice different-diameter, and to drill through silk that a cap sinks to parts during the hole, then to change the drill bit of three different-diameters through three-procedure, not only consume the worker, consuming time, power consumption, also be difficult to make that the hole of being bored is concentric, error is bigger, and qualification rate is low.
The purpose of this utility model is a concentric multistage brill of making a kind of different-diameter, when drilling and tapping, can replace existing two step or three-procedures with a step operation, and it is low to overcome prior art efficient, and power consumption is big, the defective that error is big.
The purpose of this utility model is to realize like this.Concentric multistage brill, the drilling rod that comprises drillstock, is positioned at the drillstock below and is attached thereto, and the drill lip of drilling rod bottom, described drilling rod and drill lip have the concentric secondary drilling rod of different-diameter and drill lip or three grades of drilling rods and drill lip respectively, between secondary drill lip and three grades of drill lips and horizontal level a basil are arranged.
Take the utility model of above-mentioned measure, when drilling and tapping, it is datum hole that one-level is bored the hole bored, and the datum hole bottom is used for tapping, the diameter that expands used screw to is bored on datum hole top by secondary, when the silk cap of used screw need sink to parts the time, then three grades of brills are extended to diameter greater than the silk cap to datum hole again near the position in aperture, at this moment, a brill can be finished three-procedure, need not change the brill of different-diameter, and can guarantee the concentric of three different-diameter holes, improve operating efficiency and qualification rate.
Be described in further detail below in conjunction with accompanying drawing:
Accompanying drawing 1 is the front view of three grades of brills of the utility model.
Accompanying drawing 2 is front views that the utility model secondary bores.
Accompanying drawing 3 is that the utility model K is to view.
As shown in Figure 1, the utility model has the concentric drill lip and the drilling rod of 1, three grade of different-diameter of drillstock, and the diameter of one-level brill drill lip 2 and drilling rod 3 is less, bores datum hole with one-level, in the tapping of datum hole bottom; Secondary bores to be made up of drill lip 4 and drilling rod 5, is positioned at the top that one-level bores and is attached thereto, and diameter bores big slightly than one-level, datum hole top is expanded to the diameter of screw with the secondary brill; Three grades of brills are made up of drill lip 6 and drilling rod 7 equally, are positioned at the top that secondary bores and are attached thereto, and diameter bores greater than secondary, with three grades of brills the datum hole in close apertures is extended to greater than the nut diameter so that nut can sink in the parts again.
Accompanying drawing 3 be K of the present utility model to view, as shown in Figure 3, a drill flute 8 is arranged between two drill lips, drill flute 8 upwards forms an integral body in spiral drilling rod 7 tops that rise to three grades of brills from drill lip beginning that one-level is bored, is convenient to the discharge of iron filings.
In the utility model, the basil 9 of the drill lip 4 that secondary bores or the drill lip 6 of three grades of brills changes between 110 °～180 °, according to different variation of soft durometer of boring material.
Implement the utility model and do not have the common fluted drill mould that other special process are the existing production of appropriate change.
Claims (3)
1, concentric multistage brill, the drilling rod that comprises drillstock, is positioned at the drillstock below and is attached thereto, and the drill lip of drilling rod bottom, it is characterized in that: described drilling rod (3) and drill lip (2) have concentric secondary drilling rod (5) and drill lip (4) or the three grades of drilling rods (7) and the drill lip (6) of different-diameter respectively, between drill lip (4) and drill lip (6) and the horizontal level basil (9) are arranged.
2, multistage brill according to claim 1, the diameter that it is characterized in that secondary drilling rod (5) and drill lip (4) is respectively greater than one-level drilling rod (3) and drill lip (2), and the diameter of three grades of drilling rods (7) and drill lip (6) is respectively greater than secondary drilling rod (5) and drill lip (4).
3, multistage brill according to claim 1 is characterized in that the basil (9) is 110 °～180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200358 CN2207897Y (en) | 1995-01-05 | 1995-01-05 | Concentric multi-grade drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200358 CN2207897Y (en) | 1995-01-05 | 1995-01-05 | Concentric multi-grade drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207897Y true CN2207897Y (en) | 1995-09-20 |
Family
ID=33854130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200358 Expired - Fee Related CN2207897Y (en) | 1995-01-05 | 1995-01-05 | Concentric multi-grade drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207897Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869998A (en) * | 2010-06-12 | 2010-10-27 | 宿迁中意机械制造有限公司 | Special cutter for pressure regulating valve hole of diesel engine oil cooler |
| CN104128641A (en) * | 2013-05-03 | 2014-11-05 | 苏州文鼎模具有限公司 | Drill bit |
| CN106078218A (en) * | 2016-06-22 | 2016-11-09 | 无锡惠山泵业有限公司 | The reaming of a kind of valve screwed hole and trimming device |
-
1995
- 1995-01-05 CN CN 95200358 patent/CN2207897Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869998A (en) * | 2010-06-12 | 2010-10-27 | 宿迁中意机械制造有限公司 | Special cutter for pressure regulating valve hole of diesel engine oil cooler |
| CN104128641A (en) * | 2013-05-03 | 2014-11-05 | 苏州文鼎模具有限公司 | Drill bit |
| CN106078218A (en) * | 2016-06-22 | 2016-11-09 | 无锡惠山泵业有限公司 | The reaming of a kind of valve screwed hole and trimming device |
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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 |