CN208341827U - A kind of sintering PCD drill bit - Google Patents
A kind of sintering PCD drill bit Download PDFInfo
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- CN208341827U CN208341827U CN201820717566.XU CN201820717566U CN208341827U CN 208341827 U CN208341827 U CN 208341827U CN 201820717566 U CN201820717566 U CN 201820717566U CN 208341827 U CN208341827 U CN 208341827U
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- drill bit
- pcd
- sintering
- described matrix
- sintering pcd
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Abstract
The utility model discloses a kind of sintering PCD drill bit, drill bit part, body portion and handle portions including coaxial arrangement, drill bit part is arranged in body portion front end, the drill bit part includes being sintered PCD Double Tops angular bit apical segment, the matrix section with the sintering connection of sintering PCD Double Tops angular bit apical segment, the matrix section of drill bit part and described matrix part are welded, and be v-shaped structure at the butt welding of the two, described matrix part and handle portions are integrally formed.The utility model is using sintering PCD Double Tops angular bit point, sintering PCD Double Tops angular bit apical segment can change structure in drill bit part allowed band, avoid the weld seam generated when PCD composite blade being welded at apex point in the prior art, sintering PCD apex point is convenient for doing blade processing, conducive to solving the problems, such as that burr, aliquation occurs in workpiece to be machined aperture.
Description
Technical field
The utility model relates to bit technique field, more specifically a kind of PCD sintered bit.
Background technique
With the development of science and technology, drill for high-speed technique is increasingly taken seriously.Developing High-speed drilling technique can promote enterprise
Industry processing benefit saves processing cost.But the apex point of common conventional drill is generally high-speed steel or hard alloy material, in height
It being prone to wear under fast drilling processing conditions, gradually decreases processing efficiency, machining accuracy cannot be guaranteed, and bit life reduces,
Cutting resistance is big, reduces working efficiency.Therefore, in order to improve the machining accuracy and service life of drill bit, working efficiency is improved, is bored
When cutting, apex point is used to weld PCD composite blade that is, at apex point, the PCD drill bit of this form is deposited for the PCD drill bit of single apex angle
In following problems: 1, being not easy to weld, and have weld seam after welding PCD composite sheet；2, the rake face structure of PCD composite blade is limited
System, the opposite aperture for easily leading to workpieces processing of the PCD drill bit of this spline structure is jagged and aliquation.
Utility model content
It, can be with using sintering PCD Double Tops angular bit apical segment the purpose of this utility model is to provide a kind of PCD sintered bit
Solve the problems, such as that burr, aliquation occurs in workpiece to be machined aperture.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of sintering PCD drill bit, drill bit part, body portion and handle portions, drill bit part including coaxial arrangement are set
It sets in body portion front end, the drill bit part includes sintering PCD Double Tops angular bit apical segment and sintering PCD Double Tops angular bit apical segment
It is sintered the matrix section of connection, the matrix section of drill bit part and described matrix part are welded, and are V-arrangement knot at the butt welding of the two
Structure, described matrix part and handle portions are integrally formed.
Described matrix portion is divided into the hierarchic structure being made of leading portion and back segment, and leading portion radius is less than back segment radius.
The transition position of the leading portion and back segment is equipped with a counter boring sword.
The counter boring sword is PCD counter boring sword.
Described matrix portion centers are along first cooling passage that is axially arranged with of body portion, and handle portions center is along shank
Partial is axially arranged with the second cooling passage, and the first cooling passage is connected to the second cooling passage and is located at same level
On line；Described matrix portion sub-headend, which is equipped with two and closes body portions, to be arranged symmetrically and is connected to the first cooling passage front end
Coolant liquid subchannel, coolant liquid subchannel is diagonally disposed and runs through drill bit part.
Spiral chip space is offered on described matrix part
The utility model is sintered apex point using cylindric Double Tops angle PCD monoblock type, is sintered the preceding knife of PCD Double Tops angular bit apical segment
Face can change structure in drill bit part allowed band, avoid when PCD composite blade being welded on apex point in the prior art
The weld seam of generation；Sintering PCD Double Tops angular bit apical segment convenient for doing blade processing, conducive to solve workpiece to be machined aperture occur burr,
Aliquation problem；The middle part of body portion is equipped with a counter boring sword, and counter boring sword can carry out counter boring processing to the workpiece after drilling, mention
High working efficiency；The setting of first cooling passage, the second cooling passage and coolant liquid subchannel, convenient for utilizing coolant liquid
Drill bit part in process is cooled down, the service life of drill bit part can be extended.
Detailed description of the invention
Fig. 1 is the structural front view of the utility model；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is left view in Fig. 1.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.It should be clear that this specification attached drawing is drawn
Structure, ratio, size for showing etc., only to cooperate the revealed content of specification, for those skilled in the art's understanding
With reading, enforceable qualifications are not intended to limit the utility model, therefore do not have technical essential meaning, any structure
Modification, the change of proportionate relationship or the adjustment of size, do not influencing the effect of the utility model can be generated and can reach
Purpose under, should all still fall in the range of the revealed technology contents of the utility model can cover.Meanwhile institute in this specification
Such as "upper" of reference, "lower", "left", "right", " centre " and " one " term, be merely convenient to the clear of narration, Er Feiyong
To limit the enforceable range of the utility model, relativeness is altered or modified, under the content of no substantial changes in technology, when
Also it is considered as the enforceable scope of the utility model.
As shown in Figure 1 to Figure 3, a kind of sintering PCD drill bit, drill bit part 1, body portion 2 and handle including coaxial arrangement
Portion part 3, drill bit part 1 are arranged in 2 front end of body portion.The drill bit part 1 include sintering PCD Double Tops angular bit apical segment 4, with
The matrix section 5 of the sintering connection of sintering PCD Double Tops angular bit apical segment 4, the matrix section 5 of drill bit part 1 and described matrix part 2 are welded
It connects, and is v-shaped structure at the butt welding of the two, described matrix part 2 and handle portions 3 are integrally formed.
Described matrix part 2 is the hierarchic structure being made of leading portion 6 and back segment 7, and 6 radius of leading portion is less than 7 radius of back segment.
The transition position of the leading portion 6 and back segment 7 is equipped with a counter boring sword 8, and the counter boring sword 8 is PCD counter boring sword.
Be axially arranged with first cooling passage 9 of 2 center of described matrix part along body portion, 3 center edge of handle portions
Handle portions 3 are axially arranged with the second cooling passage 10, and the first cooling passage 9 is connected to the second cooling passage 10 and position
In in same horizontal line.2 front end of described matrix part is equipped with two pass body portions 2 and is arranged symmetrically and leads to the first coolant liquid
The coolant liquid subchannel 11 of 9 front end of road connection, coolant liquid subchannel 11 is diagonally disposed and runs through drill bit part 1.
Spiral chip space 12 is offered on described matrix part 2, chip space 12 produces convenient for being discharged in process in time
Raw clast avoids clast from influencing the quality of drilling, and described matrix part 2 and handle portions 3 are hard alloy material.
The utility model is sintered apex point using cylindric Double Tops angle PCD monoblock type, before being sintered PCD Double Tops angular bit apical segment 4
Knife face can change structure in 1 allowed band of drill bit part, avoid and PCD composite blade is welded on apex point in the prior art
When the weld seam that generates, there is hair convenient for doing blade processing, conducive to workpiece to be machined aperture is solved in sintering PCD Double Tops angular bit apical segment 4
Thorn, aliquation problem.The middle part of body portion 2 is equipped with a counter boring sword 8, and the counter boring sword 8 is PCD counter boring sword, and counter boring sword 8 can be with
Counter boring processing is carried out to the workpiece after drilling, is improved work efficiency.First cooling passage 9,10 and of the second cooling passage
The setting of coolant liquid subchannel 11 can extend brill convenient for cooling down using coolant liquid to the drill bit part 1 in process
The service life of nose part 1.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (6)
1. a kind of sintering PCD drill bit, drill bit part, body portion and handle portions including coaxial arrangement, it is characterised in that: bore
In body portion front end, the drill bit part includes sintering PCD Double Tops angular bit apical segment and sintering PCD Double Tops for nose part setting
The matrix section of angular bit apical segment sintering connection, the matrix section of drill bit part and described matrix part are welded, and the butt welding of the two
Place is v-shaped structure, and described matrix part and handle portions are integrally formed.
2. sintering PCD drill bit according to claim 1, it is characterised in that: described matrix portion is divided by leading portion and back segment group
At hierarchic structure, leading portion radius be less than back segment radius.
3. sintering PCD drill bit according to claim 2, it is characterised in that: the transition position of the leading portion and back segment is equipped with one
A counter boring sword.
4. sintering PCD drill bit according to claim 3, it is characterised in that: the counter boring sword is PCD counter boring sword.
5. sintering PCD drill bit according to claim 1, it is characterised in that: described matrix portion centers are along body portion
It is axially arranged with the first cooling passage, handle portions center is axially arranged with the second cooling passage along handle portions, and first is cold
But liquid channel is connected to the second cooling passage and is located in same horizontal line；Described matrix portion sub-headend is equipped with two pass matrixes
The coolant liquid subchannel that partial symmetry is arranged and is connected to the first cooling passage front end, coolant liquid subchannel are diagonally disposed
And run through drill bit part.
6. sintering PCD drill bit according to any one of claim 1 to 5, it is characterised in that: described matrix opens up on part
There is spiral chip space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820717566.XU CN208341827U (en) | 2018-05-15 | 2018-05-15 | A kind of sintering PCD drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820717566.XU CN208341827U (en) | 2018-05-15 | 2018-05-15 | A kind of sintering PCD drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208341827U true CN208341827U (en) | 2019-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820717566.XU Active CN208341827U (en) | 2018-05-15 | 2018-05-15 | A kind of sintering PCD drill bit |
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| CN (1) | CN208341827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213465A (en) * | 2022-07-15 | 2022-10-21 | 大连理工大学 | Hole making cutter suitable for aramid fiber composite material and design method |
-
2018
- 2018-05-15 CN CN201820717566.XU patent/CN208341827U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213465A (en) * | 2022-07-15 | 2022-10-21 | 大连理工大学 | Hole making cutter suitable for aramid fiber composite material and design method |
| CN115213465B (en) * | 2022-07-15 | 2023-08-04 | 大连理工大学 | Hole making cutter suitable for aramid fiber composite material and design method |
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