CN209664387U - A kind of drill bit for high manganese steel material lead plug - Google Patents
A kind of drill bit for high manganese steel material lead plug Download PDFInfo
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- CN209664387U CN209664387U CN201920357942.3U CN201920357942U CN209664387U CN 209664387 U CN209664387 U CN 209664387U CN 201920357942 U CN201920357942 U CN 201920357942U CN 209664387 U CN209664387 U CN 209664387U
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- cutter head
- knife bar
- drill bit
- guiding groove
- dregs guiding
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Abstract
A kind of drill bit for high manganese steel material lead plug, is related to a kind of drill bit, in order to solve the problems, such as that potassium steel drills, including knife bar, cutter head, the knife bar are equipped with spiral dregs guiding groove, and spiral dregs guiding groove and knife bar axis angle α are 30 °, the knife bar is equipped with card slot, cutter head is equipped in card slot, cutter head apex angle is 116 °, and cutter head two sides are equipped with dregs guiding groove, knife bar lower end is taper, and the cutter head is cutter head made of E225 hard alloy.The utility model concentricity is high, it is convenient for mounting and clamping, work efficiency is high, solves the blank that the industry is unable to drilling ZGMn13 material, and it further solves cutter in the processing of German Crewe vigorous 4398126/27/28 liner plate and bears expenditure, processing efficiency, the working ability of potassium steel drilling is greatly enhanced, occupation rate of market is improved.
Description
Technical field
The utility model relates to a kind of drill bit, specially a kind of drill bit for high manganese steel material lead plug.
Background technique
Be often required to the suitable cutter of selection in machining, however no matter the cutter of that trade mark also will be according to rapidoprint
Determine, structure must be referring to part shape, that is to say, that there is no universal cutting tool, design cutter is the indispensable work of machining
Skill process, processing request will be able to satisfy by designing suitable cutter.
The major product of our factory first is that using ZGMn13 potassium steel cast mining machinery wearing piece, wherein workpiece has φ 50
It is not easy the hole cast out below, drilling is needed to process, and material ZGMn13 potassium steel belongs to difficult-to-machine material, common drill bit processing
In drilling, the processing difficulties being primarily present are: a processing hardening phenomenon is serious；Two, the easily high temperature decarburization of high speed rotation drill bit,
Very big difficulty is brought to the hole machined of potassium steel.
Specifically, potassium steel is machined with following intrinsic problem:
1, processing hardening is serious.It is big due to being plastically deformed in the cutting process of potassium steel, so that it is hard to generate serious processing
Change phenomenon.Hardness before processing is generally HB200-220, processes rear surface hardness up to HB450-550, serious processing hardening
Increase cutting force, exacerbate tool wear, also be easy to cause cutter tipping and damage.
2, cutting temperature is high.Since potassium steel thermal coefficient is low, so cutting region temperature is very high, high temperature when cutting will make
Strong crescent hollow abrasion is formed on cutter rake face, tool life reduces.
3, break and cut difficulty.Since potassium steel has higher toughness, so chip is not easy to crimp and fracture when cutting.
4, dimensional accuracy is not easy to control.Potassium steel linear expansion coefficient is big, locally generates thermal deformation under high cutting temperature.
5, casting defect is to being machined with larger impact.When spray is in the defects of burning into sand, sand holes, uneven surplus,
Machinability can also further decrease.
6, high temperature decarburization.High manganese steel material has high temperature decarburization, and destroying basic stitch performance makes to cut unsmooth, cutting temperature
Height is forged a knife serious.
7, cutter uses welding manner.Carbide cutter tool sheet material after high-temperature soldering performance itself lowers 30% or so,
Blade service life is significantly reduced, and blade easily cracks, quite a few microfissure is just shown in drilling process
Expose, directly result in blade destruction, cutting force increases, and cutting temperature increases.
Summary of the invention
The utility model provides a kind of brill for high manganese steel material lead plug to solve the problems, such as that potassium steel drills
Head.
The technical solution of the utility model is a kind of drill bit for high manganese steel material lead plug, including knife bar, cutter head, institute
The knife bar stated is equipped with spiral dregs guiding groove, and spiral dregs guiding groove and knife bar axis angle α are 30 °, and the knife bar is equipped with card slot,
Cutter head is equipped in card slot, cutter head apex angle is 116 °, and cutter head two sides are equipped with dregs guiding groove, and knife bar lower end is taper, and the cutter head is
Cutter head made of E225 hard alloy.
Using drill bit described in the utility model, concentricity height, clamping side are had the advantages that compared with the prior art
Just, work efficiency is high, solves the blank that the industry is unable to drilling ZGMn13 material, and to German Crewe vigorous 4398126/
It further solves cutter in the processing of 27/28 liner plate and bears expenditure, processing efficiency, greatly enhance the processing energy of potassium steel drilling
Power improves occupation rate of market.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the side view of the utility model；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is cutter head structure schematic diagram；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the top view of Fig. 5；
Wherein: 1- knife bar；2- cutter head；3- spiral dregs guiding groove；4- dregs guiding groove.
Specific embodiment
A kind of drill bit for high manganese steel material lead plug, including knife bar 1, cutter head 2, the knife bar are equipped with spiral dust lead
Slot 3, spiral dregs guiding groove 3 and 1 axis angle α of knife bar are 30 °, and the knife bar 1 is equipped with card slot, are equipped with cutter head 2, knife in card slot
First 2 apex angle is 116 °, and 2 two sides of cutter head are equipped with dregs guiding groove 4, and 1 lower end of knife bar is taper, and the cutter head 2 is E225 hard alloy
Manufactured cutter head.
Cutter head 2 thickness 4.5mm, height 22mm, card slot is interior to pass through welding manner connection cutter head 2.
In use, drill bit assembles one with standard Mohs 3# and drill press spindle, grinding concentricity exists when knife bar is manufactured
Within 0.02mm, therefore it can guarantee machining accuracy in 0.05mm nonconcentricity, in fact, our processing precision of products only needs
Within 0.2mm.And cutter head local damage is also able to achieve and refaces.
Select process tool: YG6 model E225 hard alloy and knife bar welded type；
Cutting factor: v=30-40m/min, amount of feeding f=0.06-0.10mm/r；
The type of cooling: continuously plus coolant liquid；
Divide coarse-fine processing, should first carry out roughing, finished again after workpiece is cooling, to guarantee the size essence of workpiece
Degree.
Claims (1)
1. a kind of drill bit for high manganese steel material lead plug, including knife bar (1), cutter head (2), it is characterised in that: the knife bar
(1) spiral dregs guiding groove (3) are equipped with, spiral dregs guiding groove (3) and knife bar (1) axis angle α are 30 °, and the knife bar is set on (1)
There is card slot, be equipped with cutter head (2) in card slot, cutter head (2) apex angle is 116 °, and cutter head (2) two sides are equipped with dregs guiding groove (4), under knife bar (1)
End is taper, and the cutter head (2) is cutter head made of E225 hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357942.3U CN209664387U (en) | 2019-03-20 | 2019-03-20 | A kind of drill bit for high manganese steel material lead plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920357942.3U CN209664387U (en) | 2019-03-20 | 2019-03-20 | A kind of drill bit for high manganese steel material lead plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209664387U true CN209664387U (en) | 2019-11-22 |
Family
ID=68572221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920357942.3U Active CN209664387U (en) | 2019-03-20 | 2019-03-20 | A kind of drill bit for high manganese steel material lead plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209664387U (en) |
-
2019
- 2019-03-20 CN CN201920357942.3U patent/CN209664387U/en active Active
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