CN206276950U - A kind of welded type PCBN drill bits - Google Patents
A kind of welded type PCBN drill bits Download PDFInfo
- Publication number
- CN206276950U CN206276950U CN201621389993.7U CN201621389993U CN206276950U CN 206276950 U CN206276950 U CN 206276950U CN 201621389993 U CN201621389993 U CN 201621389993U CN 206276950 U CN206276950 U CN 206276950U
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- China
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- blade
- auxiliary
- drill bit
- layer
- pcbn
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- 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.)
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Abstract
A kind of welded type PCBN drill bits include：Drill bit, handle of a knife, the first blade, the second blade, the first auxiliary-blade, the second auxiliary-blade and chisel edge.The top of the first blade and the second blade is welded with bottom of drill bit, and handle of a knife is connected with drill bit, and the first auxiliary-blade is connected with the first blade, and the second auxiliary-blade is connected with the second blade, and chisel edge connects the first blade and the second blade at drill bit axle center.Wherein, drill bit includes：Alloy-layer, boron nitride layer and weld layer.The utility model compared with prior art, PCBN is welded on the top cut position of drill bit with the method for soldering, and solder side has three, very firmly；PCBN materials cutting edge after sharpening can directly be directed at difficult-to-machine material and carry out drilling cutting, and cutting wear can improve 5~10 times, save tool change time, reduce production cost.
Description
Technical field
The utility model is related to a kind of technical field of drill bit structure, especially a kind of welded type PCBN drill bits.
Background technology
The device to hole in the modern manufacturing such as Aero-Space, automobile, medicine equipment, instrument and meter, precision machine tool, mould field
The difficult-to-machine material such as processing request more and more higher, particularly nickel-base alloy, cobalt-base alloys, chilled cast iron, titanium-aluminium alloy hole plus
Work is very difficult, and the major defect of the high-speed steel, hard alloy and its coated drill that use at present is quick abrasion, short life, essence
Degree is poor, and efficiency is low, high cost.
Therefore, a series of R＆D works have been carried out in order to solve the above problems.
Utility model content
The purpose of this utility model is, there is provided a kind of welded type PCBN drill bits, upper existing for prior art to overcome
State shortcoming and defect.
A kind of welded type PCBN drill bits, it is characterised in that including：Drill bit, handle of a knife, the first blade, the second blade, the first pair
Blade, the second auxiliary-blade and chisel edge, first blade and the second blade are by chisel edge connection, first blade and the second blade
Top and bottom of drill bit weld, the handle of a knife is connected with drill bit, and first auxiliary-blade is connected with the first blade, described second
Auxiliary-blade is connected with the second blade, and the chisel edge is at drill bit axle center；
Wherein, the drill bit includes：Alloy-layer, boron nitride layer and weld layer, the alloy-layer wrap boron nitride layer, institute
State boron nitride layer lamination to be connected on drill bit, the weld layer connects drill bit and the first blade and the second blade.
Further, the handle of a knife front end is provided with cutter groove, and the cutter groove is welded with alloy-layer.
Further, first auxiliary-blade and the second auxiliary-blade are respectively equipped with the partially secondary angle of the first auxiliary-blade and the second auxiliary-blade
The angle at partially secondary angle, the partially secondary angle of first auxiliary-blade and the partially secondary angle of the second auxiliary-blade is 0 °, the partially secondary angle of first auxiliary-blade
Length with the partially secondary angle of the second auxiliary-blade is 1~1.5mm.
Further, the chisel edge length is 0.2~0.5mm.
The beneficial effects of the utility model：
The utility model compared with prior art, PCBN is welded on the top cut position of drill bit with the method for soldering,
Solder side has three, very firmly；PCBN materials cutting edge after sharpening can directly be directed at difficult-to-machine material and carry out drilling cutting, knife
The durability of tool can improve 5~10 times, save tool change time, reduce production cost.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model.
Fig. 2 is drill bit structure of the present utility model.
Reference：
Drill bit 100, alloy-layer 110, boron nitride layer 120 and weld layer 130.
Handle of a knife 200, cutter groove 210, the first blade 300 and the second blade 400.
The partially secondary angle 510 of first auxiliary-blade 500, the first auxiliary-blade, the partially secondary angle 610 of the second auxiliary-blade, the and of the second auxiliary-blade 600
Chisel edge 700.
Specific embodiment
Below in conjunction with specific embodiment, progressive explanation is made to the utility model.It should be understood that following examples are merely to illustrate
The utility model is not for restriction scope of the present utility model.
Embodiment 1
Fig. 1 is structure chart of the present utility model.Fig. 2 is drill bit structure of the present utility model.
As depicted in figs. 1 and 2, a kind of welded type PCBN drill bits include：Drill bit 100, handle of a knife 200, the first blade 300,
Two blades 400, the first auxiliary-blade 500, the second auxiliary-blade 600 and chisel edge 700, the first blade 300 and the second blade 400 are by chisel edge
(700) connect, top and the bottom of drill bit 100 of the first blade 300 and the second blade 400 are welded, and handle of a knife 200 connects with drill bit 100
Connect, the first auxiliary-blade 500 is connected with the first blade 300, the second auxiliary-blade 600 is connected with the second blade 400, and chisel edge 700 is located at
At the axle center of drill bit 100.
Wherein, drill bit 100 includes：Alloy-layer 110, boron nitride layer 120 and weld layer 130, alloy-layer 110 wrap nitridation
Boron layer 120, the lamination of boron nitride layer 120 is connected on drill bit 100, the connection blade 300 of drill bit 100 and first of weld layer 130 and the
Two blades 400.
The front end of handle of a knife 200 is provided with cutter groove 210, and cutter groove 210 is welded with alloy-layer 110.
It is inclined that first auxiliary-blade 500 and the second auxiliary-blade 600 are respectively equipped with the partially secondary auxiliary-blade of angle 510 and second of the first auxiliary-blade
Secondary angle 610, the angle at the partially secondary partially secondary angle 610 of the auxiliary-blade of angle 510 and second of the first auxiliary-blade is 0 °, the partially secondary angle of the first auxiliary-blade
510 and second the length at the partially secondary angle 610 of auxiliary-blade be 1~1.5mm.
The length of chisel edge 700 is 0.2~0.5mm.
The utility model compared with prior art, PCBN is welded on the top cut position of drill bit with the method for soldering,
Solder side has three, very firmly；PCBN materials cutting edge after sharpening can directly be directed at difficult-to-machine material and carry out drilling cutting, knife
The durability of tool can improve 5~10 times, save tool change time, reduce production cost.
Drill bit can be suitably used for various Knife handle structures, including：Staight shank, Morse taper shank, 7:What 24 taper shanks and the contact of two faces were clamped
HSK handle of a knifes, the need for meeting various machining conditions.
First blade 300, the spiral flute type structure of the composition of the second blade 400 can design difference according to workpiece material property
Groove profile, chip removal is smooth.
And reach certain thickness after the soldering stacked together of several pieces cubic boron nitrides.
Alloy-layer 110 is welded in the cutter groove of handle of a knife front end with high-frequency welding or vacuum welding.By the work of bit cutting
The brill type of part design of material, spiral flute type, helical angle, rear knife face shape, anterior angle, relief angle, sharp angle, chisel edge length, the horizontal stroke of reduction
The geometric parameters such as angle of cutting edge, chisel edge relief angle, tool cutting edge angle, auxiliary angle, cutting edge inclination, front clearance, in five axles or four-axle linked numerical control
Cutter and tool grinding machine last time clamping is completed.
By 0 ° of 1~1.5mm is ground in the first auxiliary-blade 500 of drill bit 100 and the axial direction of the second auxiliary-blade 600
The partially secondary partially secondary angle 610 of the auxiliary-blade of angle 510 and second of one auxiliary-blade, can well play smoothing effect, can improve the finish in hole
With the dimensional accuracy in hole.
On the other hand grind double sharp angle to reduce bit wear, the length root of chisel edge 700 at the cutting position of drill bit 100
Can be reduced between 0.2~0.5mm according to diameter, to reduce axial resistance, coordinate the high rigidity of boron nitride layer 120, effectively
Improve the intensity and cutting ability of blade.
Above all courageously weld layer 130 is coordinated to weld the first blade 300 and the second blade 400 using alloy-layer 110
It is connected at drill bit, makes that the cutting speed of permission is more much higher than hard alloy, production efficiency is greatly improved.
Specific embodiment of the present utility model is illustrated above, but the utility model is not limited thereto, only
Objective of the present utility model is not departed from, the utility model there can also be various change.
Claims (4)
1. a kind of welded type PCBN drill bits, it is characterised in that including：Drill bit (100), handle of a knife (200), the first blade (300),
Two blades (400), the first auxiliary-blade (500), the second auxiliary-blade (600) and chisel edge (700), first blade (300) and
Two blades (400) are connected by chisel edge (700), top and the drill bit (100) of first blade (300) and the second blade (400)
Bottom is welded, and the handle of a knife (200) is connected with drill bit (100), and first auxiliary-blade (500) is connected with the first blade (300),
Second auxiliary-blade (600) is connected with the second blade (400), and the chisel edge (700) is at drill bit (100) axle center；
Wherein, the drill bit (100) includes：Alloy-layer (110), boron nitride layer (120) and weld layer (130), the alloy-layer
(110) boron nitride layer (120) is wrapped, boron nitride layer (120) lamination is connected on drill bit (100), the weld layer
(130) connection drill bit (100) and the first blade (300) and the second blade (400).
2. a kind of welded type PCBN drill bits according to claim 1, it is characterised in that：Handle of a knife (200) front end is provided with
Cutter groove (210), the cutter groove (210) is welded with alloy-layer (110).
3. a kind of welded type PCBN drill bits according to claim 1, it is characterised in that：First auxiliary-blade (500) and
Second auxiliary-blade (600) is respectively equipped with the partially secondary angle (510) of the first auxiliary-blade and the partially secondary angle (610) of the second auxiliary-blade, described first
The angle of the partially secondary angle (510) of auxiliary-blade and the partially secondary angle (610) of the second auxiliary-blade is 0 °, the partially secondary angle (510) of first auxiliary-blade
Length with the partially secondary angle (610) of the second auxiliary-blade is 1~1.5mm.
4. a kind of welded type PCBN drill bits according to claim 1, it is characterised in that：Chisel edge (700) length is 0.2
~0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389993.7U CN206276950U (en) | 2016-12-16 | 2016-12-16 | A kind of welded type PCBN drill bits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389993.7U CN206276950U (en) | 2016-12-16 | 2016-12-16 | A kind of welded type PCBN drill bits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206276950U true CN206276950U (en) | 2017-06-27 |
Family
ID=59072592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621389993.7U Expired - Fee Related CN206276950U (en) | 2016-12-16 | 2016-12-16 | A kind of welded type PCBN drill bits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206276950U (en) |
-
2016
- 2016-12-16 CN CN201621389993.7U patent/CN206276950U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Qingpu District of Shanghai city in 201703 Zhao Zhen Huqingping No. 3797 30-236 Patentee after: Shanghai Tao cultural creative Limited by Share Ltd Address before: Qingpu District of Shanghai city in 201703 Zhao Zhen Huqingping No. 3797 30-236 Patentee before: Shanghai Dianpai Enterprise Image Planning Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20191216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |