CN201239815Y - Trepanning drill with combined cutter block for cutting - Google Patents
Trepanning drill with combined cutter block for cutting Download PDFInfo
- Publication number
- CN201239815Y CN201239815Y CNU2008201519152U CN200820151915U CN201239815Y CN 201239815 Y CN201239815 Y CN 201239815Y CN U2008201519152 U CNU2008201519152 U CN U2008201519152U CN 200820151915 U CN200820151915 U CN 200820151915U CN 201239815 Y CN201239815 Y CN 201239815Y
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- CN
- China
- Prior art keywords
- cylindrical drill
- cutter
- trogue
- drill body
- burnt
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Abstract
The utility model discloses a cylindrical drill with cutter assembled cutting, which comprises cylindrical drill body and a cutter body. The cylindrical drill body adopts an annulus structure, cutter grooves are uniformly arranged at the upper end of the cylindrical drill body in the circumferential direction, a dip angle is arranged on the inner side at the bottom part of each cutter groove, a chip removing opening is arranged beside each cutter groove, and the inner wall of the chip removing opening inclines inward. The bottom surface of the cutter groove of the cylindrical drill body inclines inward at a certain angle, a dip angle is formed at the bottom part of the cutter groove, therefore the abrasion between the cylindrical drill and workpieces is greatly reduced, the service life is prolonged, and simultaneously the drill bit cutter is more stable installed; iron chips produced during the processing process are more smooth to be discharged. In addition, the cylindrical drill body is connected with the drill pipe through matching with an I-shaped pin and four side clips, therefore the connection is more convenient and faster.
Description
Technical field
The utility model relates to cutting tool, particularly a kind of cylindrical drill of cutter piece combination cutting.
Background technology
Existing cylindrical drill mostly adopts quartering cutter groove, the cutting of four hilted broadswords, and the resistance that knife is subjected to when cutting is too big; It is improper that the base angle of cutter piece is provided with, and takes off when cutting easily; The drill body cylindrical has only two gripper shoes, is easy to generate the shake cutter when drill body is stressed; The workpiece of processing does not have effective guiding will make drill body depart from low precision.The design of crumb mouth is often also not too reasonable, causes the accumulation of iron filings easily; With the joint problem of drilling rod on also all adopt nipple, make that the replacing of drill body is convenient inadequately; Cylindrical drill on the simultaneously present market does not mostly design burnt trogue and oil groove on drill body, this freely all has certain influence to the efficient of cutting and the row stable and iron filings of drill body itself, and working (machining) efficiency is low.
Summary of the invention
The purpose of this utility model is to provide a kind of cylindrical drill of cutter piece combination cutting, and it is little, easy to assembly that it has wearing and tearing, and chip removal is unobstructed; The working (machining) efficiency height, the product precision advantages of higher that processes.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of cylindrical drill of cutter piece combination cutting, it comprises cylindrical drill body and cutter hub; Described cylindrical drill body, it is a ring body structurc, and its upper end edge is circumferentially evenly offered the cutter groove, and each cutter trench bottom inboard is provided with an inclination angle, and each cutter groove next door is provided with a crumb mouth, and the crumb mouth inwall slopes inwardly.
Further, the cylindrical drill body outside on described each cutter groove next door is axially arranged with an oil groove along the cylindrical drill body, adds man-hour oil direct current and goes into knife cutting place, can not make iron filings be accumulated in knife-edge part, guarantees cutting smoothly.
It is more convenient that the installing hole of cylindrical drill body upper surface is installed the drill bit knife, and the oil groove on cutter groove next door makes the iron filings discharging that produces in the process more smooth and easy.
In addition, cylindrical drill body upper end edge described in the utility model is circumferentially evenly offered six cutter grooves, each cutter trench bottom inboard is provided with one 45 degree inclination angle, the wearing and tearing of the upper end of cylindrical drill in the process and workpiece can be reduced in this 45 degree inclination angle, increase service life, it is more stable that the inclination of cutter groove bottom simultaneously can make drill bit install, difficult drop-off.Each cutter groove next door is provided with a cutter piece combination slot, and the bottom surface of cutter piece combination slot 30 degree that slope inwardly make the iron filings discharging that produces in the process more smooth and easy like this.
Described cylindrical drill body side is along the burnt trogue that circumferentially evenly distributes, and comprising long burnt trogue, short burnt trogue, long burnt trogue is interspersed with short burnt trogue, and the upper end of each short burnt trogue is provided with a gathering sill, and guide plate is set in the gathering sill.
In addition, described cylindrical drill body side is along 6 the burnt trogues of oval hole shape that circumferentially evenly distribute, 3 long burnt trogues wherein, other 3 are short burnt trogue, long burnt trogue is interspersed with short burnt trogue, the upper end of each short burnt trogue is provided with the gathering sill of an I shape, and the carbide alloy guide plate is set in the gathering sill.
The influence that the drill bit knife is shaken be can reduce along circumferential equally distributed 6 burnt trogues and 3 carbide alloy guide plates in process, the stock-removing efficiency of drill bit knife and stablizing of cylindrical drill body itself guaranteed.
Described cylindrical drill body lower end is that the center symmetry is established and offered the I-shaped groove with the cylindrical drill body axis, and relative set I-shaped pin; Also have the fixing hole that runs through sidewall and I-shaped groove on the body, the I-shaped pin is connected and fixed by a fixture.
Have, cylindrical drill body described in the utility model lower end is that the center is symmetrical arranged 4 I-shaped pins with the cylindrical drill body axis, and 4 I-shaped pins of relative set again.
Cylindrical drill body lower end also is provided with 4 checkposts to invagination of matching with the I-shaped pin.The I-shaped pin matches with four checkposts cylindrical drill is fixedly connected on the drilling rod, and this structure has overcome available technology adopting and has been threaded and causes locked technological deficiency easily, makes being connected and dismantling more convenient of cylindrical drill and drilling rod.
Described cylindrical drill body has adopted 30 ° of chi angles.
The beneficial effects of the utility model
The cutter groove bottom of the utility model cylindrical drill body certain angle that slopes inwardly forms an inclination angle at the cutter trench bottom, makes the wearing and tearing of cylindrical drill and workpiece less greatly, has increased service life, also makes the installation of drill bit knife more stable simultaneously.Cutter groove next door is provided with slope inwardly crumb mouth and oil groove, makes that like this iron filings discharging that produces in the process is more smooth and easy.The cylindrical drill body matches with four checkposts by the I-shaped pin and is connected with drilling rod, makes that connection is more convenient faster.
Description of drawings
Fig. 1 is the structural representation of the utility model cylindrical drill one embodiment;
Fig. 2 a is the schematic diagram of the utility model cylindrical drill cutter hub-Nei angle of throat;
Fig. 2 b is the schematic diagram of the utility model cylindrical drill cutter hub-endoporus smoothing cutter;
Fig. 2 c is the schematic diagram of the utility model cylindrical drill cutter hub-endoporus core material smoothing cutter.
The specific embodiment
As shown in Figure 1, the combination cutting of the utility model cutter piece cylindrical drill, it comprises cylindrical drill body 1 and cutter hub 2 (outer angle of throat); Described cylindrical drill body 1, it is a ring body structurc, and its upper end edge is circumferentially evenly offered 6 cutter grooves 11, and each cutter groove 11 bottom inside is provided with one 45 degree inclination angle, and each cutter groove 11 next door is provided with a crumb mouth 12, and crumb mouth 12 inwalls slope inwardly;
The cylindrical drill body outside on described each cutter groove 11 next door is axially arranged with an oil groove 13 along the cylindrical drill body;
Described cylindrical drill body 1 side is along 6 the burnt trogues of oval hole shape that circumferentially evenly distribute, 3 long burnt trogues 14 wherein, other 3 are short burnt trogue 15, long burnt trogue 14 is interspersed with short burnt trogue 15, the upper end of each short burnt trogue 15 is provided with the gathering sill 16 of an I shape, and carbide alloy guide plate 3 is set in the gathering sill.
Described cylindrical drill body 1 lower end is that the center symmetry is offered I-shaped groove 17 with cylindrical drill body 1 axis, and 4 I-shaped pins 4 of relative set, also has the fixing hole 18 that runs through sidewall and I-shaped groove 17 on the body 1, by a fixture I-shaped pin 4 is connected and fixed.
Described cylindrical drill body has adopted 30 ° of chi angles.
Referring to Fig. 2 a～Fig. 2 c, it is depicted as all kinds of the utility model cutter hub, promptly interior angle of throat, endoporus smoothing cutter, endoporus core material smoothing cutter.
Cutter groove bottom by the utility model cylindrical drill body certain angle that slopes inwardly forms an inclination angle at the cutter trench bottom, makes the wearing and tearing of cylindrical drill and workpiece less greatly, has increased service life, also makes the installation of drill bit knife more stable simultaneously.Cutter groove next door is provided with slope inwardly crumb mouth and oil groove, makes that like this iron filings discharging that produces in the process is more smooth and easy.The cylindrical drill body matches with four checkposts by the I-shaped pin and is connected with drilling rod, makes that connection is more convenient faster.
Claims (10)
1. a cutter piece makes up the cylindrical drill of cutting, it comprises cylindrical drill body and cutter hub, it is characterized in that: the cylindrical drill body, it is a ring body structurc, its upper end edge is circumferentially evenly offered the cutter groove, each cutter trench bottom inboard is provided with an inclination angle, and each cutter groove next door is provided with a crumb mouth, and the crumb mouth inwall slopes inwardly.
2. cylindrical drill as claimed in claim 1, it is characterized in that: described cylindrical drill body upper end edge is circumferentially evenly offered six cutter grooves, each cutter trench bottom inboard is provided with one 45 degree inclination angle, and each cutter groove next door is provided with a crumb mouth, crumb mouth inwall 30 degree that slope inwardly.
3. the cylindrical drill of cutter piece combination cutting as claimed in claim 1 or 2 is characterized in that: the cylindrical drill body outside on described each cutter groove next door is axially arranged with an oil groove along the cylindrical drill body.
4. the cylindrical drill of cutter piece combination cutting as claimed in claim 1 or 2, it is characterized in that: described cylindrical drill body side is along the burnt trogue that circumferentially evenly distributes, comprising long burnt trogue, short burnt trogue, long burnt trogue is interspersed with short burnt trogue, the upper end of each short burnt trogue is provided with a gathering sill, and guide plate is set in the gathering sill.
5. the cylindrical drill of cutter piece combination cutting as claimed in claim 3, it is characterized in that: described cylindrical drill body side is along the burnt trogue that circumferentially evenly distributes, comprising long burnt trogue, short burnt trogue, long burnt trogue is interspersed with short burnt trogue, the upper end of each short burnt trogue is provided with a gathering sill, and guide plate is set in the gathering sill.
6. the cylindrical drill of cutter piece combination cutting as claimed in claim 1 or 2, it is characterized in that: described cylindrical drill body side is along 6 the burnt trogues of oval hole shape that circumferentially evenly distribute, 3 long burnt trogues wherein, other 3 are short burnt trogue, long burnt trogue is interspersed with short burnt trogue, the upper end of each short burnt trogue is provided with the metal gathering sill of an I shape, and the carbide alloy guide plate is set in the metal gathering sill.
7. the cylindrical drill of cutter piece combination cutting as claimed in claim 1 or 2, it is characterized in that: described cylindrical drill body lower end is that the center symmetry is established and offered the I-shaped groove with the cylindrical drill body axis, and relative set I-shaped pin, also have the fixing hole that runs through sidewall and I-shaped groove on the body, the I-shaped pin is connected and fixed by a fixture.
8. the cylindrical drill of cutter piece combination cutting as claimed in claim 3, it is characterized in that: described cylindrical drill body lower end is that the center symmetry is established and offered the I-shaped groove with the cylindrical drill body axis, and relative set I-shaped pin, also have the fixing hole that runs through sidewall and I-shaped groove on the body, the I-shaped pin is connected and fixed by a fixture.
9. the cylindrical drill of cutter piece as claimed in claim 1 or 2 combination cutting is characterized in that: described cylindrical drill body lower end is that the center symmetry is established and offered 4 I-shaped grooves with the cylindrical drill body axis, and 4 I-shaped pins of relative set.
10. the cylindrical drill of cutter piece combination cutting as claimed in claim 1 or 2, it is characterized in that: described cylindrical drill body has adopted 30 ° of chi angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201519152U CN201239815Y (en) | 2008-08-13 | 2008-08-13 | Trepanning drill with combined cutter block for cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201519152U CN201239815Y (en) | 2008-08-13 | 2008-08-13 | Trepanning drill with combined cutter block for cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201239815Y true CN201239815Y (en) | 2009-05-20 |
Family
ID=40713105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201519152U Expired - Fee Related CN201239815Y (en) | 2008-08-13 | 2008-08-13 | Trepanning drill with combined cutter block for cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201239815Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091804A (en) * | 2009-12-10 | 2011-06-15 | 辽阳石化机械设计制造有限公司 | Trepanning device |
| CN114734541A (en) * | 2022-06-13 | 2022-07-12 | 北京安泰钢研超硬材料制品有限责任公司 | Self-chip-removal brazing diamond thin-wall drill bit and preparation method thereof |
-
2008
- 2008-08-13 CN CNU2008201519152U patent/CN201239815Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091804A (en) * | 2009-12-10 | 2011-06-15 | 辽阳石化机械设计制造有限公司 | Trepanning device |
| CN102091804B (en) * | 2009-12-10 | 2013-06-19 | 辽阳石化机械设计制造有限公司 | Trepanning device |
| CN114734541A (en) * | 2022-06-13 | 2022-07-12 | 北京安泰钢研超硬材料制品有限责任公司 | Self-chip-removal brazing diamond thin-wall drill bit and preparation method thereof |
| CN114734541B (en) * | 2022-06-13 | 2022-09-23 | 北京安泰钢研超硬材料制品有限责任公司 | Self-chip-removing brazing diamond thin-wall drill bit and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |