CN209830374U - Polycrystalline diamond drill bit with W-shaped drill tip cutting edge - Google Patents
Polycrystalline diamond drill bit with W-shaped drill tip cutting edge Download PDFInfo
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- CN209830374U CN209830374U CN201920201652.XU CN201920201652U CN209830374U CN 209830374 U CN209830374 U CN 209830374U CN 201920201652 U CN201920201652 U CN 201920201652U CN 209830374 U CN209830374 U CN 209830374U
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- polycrystalline diamond
- drill bit
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- cutting edge
- bit
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Abstract
The utility model relates to a diamond bit technical field just discloses a polycrystalline diamond bit with W type drill point blade, including the carbide base member, the right-hand member welding of carbide base member has polycrystalline diamond material, polycrystalline diamond material keeps away from the one end fixedly connected with W type drill point blade of carbide base member, the cooling water hole has been seted up to polycrystalline diamond material's surface, the chip groove is located the rear in cooling water hole. This polycrystalline diamond drill bit, under the condition that equipment allowed, the processing linear velocity can reach more than 300m/min, satisfies the high-speed high-efficient requirement of processing of customer, compares with traditional alloy drill bit, high-speed steel drill bit, the PCD drill bit of welding two PCD blades, and the cutter life-span promotes by a wide margin, and the stick processing cost reduces by a wide margin, and the processing product aperture precision can reach 8 grades, and the surface roughness of processing product reaches more than Ra1.6.
Description
Technical Field
The utility model relates to a diamond bit technical field specifically is a polycrystalline diamond bit with W type drill point blade.
Background
In the field of automobile and aerospace machining, more than 85% of non-ferrous metal and non-metallic composite materials which are difficult to machine are used as hard alloy drill bits or high-speed steel drill bits in the aspect of drilling and machining, and about 15% of the non-ferrous metal and non-metallic composite materials are used as PCD drill bits for welding two PCD cutter heads. The prior product has the following defects: 1. the surface roughness of the products after the alloy drill bit and the high-speed steel drill bit are machined cannot meet the requirements of the products, the products are roughly machined under most conditions, then the products need to be finely machined by using a superhard cutter, the machining time is wasted, and the production cost is increased. 2. Along with the popularization of high-speed and high-efficiency processing, the alloy drill bit and the high-speed steel drill bit cannot exert the efficiency of high-end equipment to the maximum due to the influence of the linear velocity, and therefore the waste of resources is caused. 3. The PCD drill bit with two PCD cutter heads welded is still made of hard alloy materials, so that the drill tip is rapidly abraded in the high-speed machining process, the whole product is scrapped, and the advantages of diamond materials cannot be exerted. 4. Conventional drill bits are all in the form of a drill point angle, resulting in a drill bit cutting load of up to 60% of the total load at the point of the chisel edge during the cutting process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a polycrystalline diamond drill bit with W type drill point blade possesses the life-span reduction in production cost advantage that improves the cutter, has solved the problem that the cutter life-span is short and manufacturing cost is high.
For the purpose of realizing above-mentioned improvement cutter life reduction in production cost, the utility model provides a following technical scheme: the utility model provides a polycrystalline diamond drill bit with W type drill tip blade, includes the carbide base member, the right-hand member welding of carbide base member has polycrystalline diamond material, polycrystalline diamond material keeps away from the one end fixedly connected with W type drill tip blade of carbide base member, the cooling water hole has been seted up to polycrystalline diamond material's surface, the chip groove is located the rear in cooling water hole.
Preferably, the hard alloy matrix and the chip grooves are of an integrated structure.
Preferably, the cross section of the W-shaped drill point cutting edge is W-shaped.
Preferably, the cooling water hole is of an inner cooling hole structure.
Advantageous effects
Compared with the prior art, the utility model provides a polycrystalline diamond drill bit with W type drill point blade possesses following beneficial effect:
(1) according to the polycrystalline diamond drill bit, under the condition that equipment allows, the processing linear speed can reach more than 300m/min, and the requirement of high-speed and high-efficiency processing of customers is met.
(2) According to the polycrystalline diamond drill bit, the aperture precision of a processed product can reach 8 grades, and the surface roughness of the processed product reaches more than Ra1.6.
(3) This polycrystalline diamond drill bit compares with traditional alloy drill bit, high-speed steel drill bit, the PCD drill bit of welding two PCD blades, and the cutter life-span promotes by a wide margin, and the stick processing cost reduces by a wide margin.
(4) This polycrystalline diamond drill bit, through setting up W type drill point blade 3, the cutting load of the drill bit of W type drill point blade 3 when processing is only about 60% of original drill point drill bit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 hard alloy matrix, 2 polycrystalline diamond material, 3W type drill point cutting edge, 4 cooling water holes and 5 chip grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the polycrystalline diamond drill bit with the W-shaped drill tip cutting edge comprises a hard alloy substrate 1, a polycrystalline diamond material 2 is welded at the right end of the hard alloy substrate 1, one end, far away from the hard alloy substrate 1, of the polycrystalline diamond material 2 is fixedly connected with a W-shaped drill tip cutting edge 3, the cross section of the W-shaped drill tip cutting edge 3 is W-shaped, a cooling water hole 4 is formed in the outer surface of the polycrystalline diamond material 2, a chip removal groove 5 is formed in the outer surface of the polycrystalline diamond material 2, the hard alloy substrate 1 and the chip removal groove 5 are of an integrated structure, the chip removal groove 5 is located behind the cooling water hole 4, and the cooling water hole 4 is of an inner cooling hole.
The working principle is as follows: the polycrystalline diamond drill bit is characterized in that a chip groove 5 is machined on a hard alloy matrix 1 on a five-axis tool grinding machine, a polycrystalline diamond mounting groove is machined on special equipment, the hard alloy matrix 1 and a polycrystalline diamond material 2 are welded together through a vacuum welding technology, a cutting edge of a cutter is machined into a W-shaped drill tip cutting edge 3 form on laser machining equipment, coolant of the machine tool discharges scraps generated by contact of the W-shaped drill tip cutting edge 3 and a workpiece through a cooling water hole 4 through the chip groove 5, and machining of a product is finished
In conclusion, the polycrystalline diamond drill bit has the advantages that the processing linear speed can reach more than 300m/min under the condition that equipment allows, and the requirement of a client on high-speed and high-efficiency processing is met.
According to the polycrystalline diamond drill bit, the aperture precision of a processed product can reach 8 grades, and the surface roughness of the processed product reaches more than Ra1.6.
This polycrystalline diamond drill bit compares with traditional alloy drill bit, high-speed steel drill bit, the PCD drill bit of welding two PCD blades, and the cutter life-span promotes by a wide margin, and the stick processing cost reduces by a wide margin.
This polycrystalline diamond drill bit, through setting up W type drill point blade 3, the cutting load of the drill bit of W type drill point blade 3 when processing is only about 60% of original drill point drill bit.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A polycrystalline diamond drill bit with W-shaped drill tip cutting edge, comprising a hard alloy matrix (1), characterized in that: the right-hand member welding of carbide base member (1) has polycrystalline diamond material (2), polycrystalline diamond material (2) are kept away from the one end fixedly connected with W type drill point blade (3) of carbide base member (1), cooling water hole (4) have been seted up to the surface of polycrystalline diamond material (2), chip groove (5) are located the rear in cooling water hole (4).
2. A polycrystalline diamond drill bit having a W-shaped drill tip cutting edge according to claim 1, wherein: the hard alloy matrix (1) and the chip groove (5) are of an integrated structure.
3. A polycrystalline diamond drill bit having a W-shaped drill tip cutting edge according to claim 1, wherein: the cross section of the W-shaped drill point cutting edge (3) is W-shaped.
4. A polycrystalline diamond drill bit having a W-shaped drill tip cutting edge according to claim 1, wherein: the cooling water hole (4) is of an inner cooling hole structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201652.XU CN209830374U (en) | 2019-02-15 | 2019-02-15 | Polycrystalline diamond drill bit with W-shaped drill tip cutting edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920201652.XU CN209830374U (en) | 2019-02-15 | 2019-02-15 | Polycrystalline diamond drill bit with W-shaped drill tip cutting edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830374U true CN209830374U (en) | 2019-12-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920201652.XU Active CN209830374U (en) | 2019-02-15 | 2019-02-15 | Polycrystalline diamond drill bit with W-shaped drill tip cutting edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209830374U (en) |
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2019
- 2019-02-15 CN CN201920201652.XU patent/CN209830374U/en active Active
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