CN203636029U - Machine clamp hard alloy trepanning drill bit - Google Patents
Machine clamp hard alloy trepanning drill bit Download PDFInfo
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- CN203636029U CN203636029U CN201320788182.4U CN201320788182U CN203636029U CN 203636029 U CN203636029 U CN 203636029U CN 201320788182 U CN201320788182 U CN 201320788182U CN 203636029 U CN203636029 U CN 203636029U
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- blade
- cutting edge
- carbide
- helical flute
- shank
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Abstract
The utility model relates to the technical field of cutting tools and provides a machine clamp hard alloy trepanning drill bit which comprises a handle portion. One end of the handle portion is connected with a spindle of processing equipment while the other end of the same is connected with a sleeve-shaped cutter, 4-6 spiral chip discharging grooves are arranged on the outer wall of the sleeve-shaped cutter, a blade groove is arranged on the end portion of each spiral chip discharging groove, a hard alloy cutting blade is arranged in each blade groove and fixed in the blade groove through a compression screw capable of being self-locked, and a cutting edge is arranged around each hard alloy cutting blade and formed by superposing two hard alloy blades. By the machine clamp hard alloy trepanning drill bit, the problems of low speed and low efficiency when big holes and deep holes are processed in mechanical processing industry in the prior art are solved.
Description
Technical field
The utility model relates to cutting tool technical field, refers to especially a kind of machine holding carbide alloy treapanning drill.
Background technology
This drill bit is the cutting tool often using in machining, according to using function can be called machine holding carbide alloy treapanning drill, also there are the hollow boring bit of being called and annular cutting tool according to shape, as the term suggests be exactly the drill bit that does not bore core, this drill bit can be processed through hole, blind hole and cannelure, can jacking when processing through hole.People use spiral bit to have the history of more than 100 year.Because the brill core segment of spiral bit is negative cutting angle completely, cutting resistance is very large, so the cutting force 50%-60% of spiral bit is because the brill core of drill bit causes.Add the factor of steel, so spiral bit can not do very greatly.The larger darker hole of processing just must start to expand length by length from boring aperture, until reaming size reaches requirement.
Common cutter exists slow, the inefficient difficult problem of speed all the time at processing macropore deep hole, is mostly subdrilling aperture adding man-hour before, then expansion step by step.The cutting speed of high-speed steel drill is the highest can not exceed 30 ms/min; The high-speed steel drill material defects of larger specification is more, is difficult for overcoming; Sharpening is very inconvenient again after being worn out for the high-speed steel drill of larger specification, and these factors have just limited the process velocity of whole workpiece.The appearance of hollow boring bit has expanded the cutting scope of drill bit, use relatively little power just can process macropore deep hole, also can the size of hollow boring bit be done very greatly, only on cutting edge, use good or best steel, not only reduce processing cost, also originally thinking that impossible processing technology mode may become.
Overlaying processing can leave material core, can save material, reduces the power consumption of lathe.In the time that needs take out sample and make service check from material center, treapanning drill is that other kind of cutter institute is irreplaceable.Treapanning drill is generally used for processing 60 millimeters of above holes of diameter, and the jacking degree of depth can reach tens meters.Treapanning drill has two kinds of external chip discharging and interior chip removals.The major advantage of external chip discharging cylindrical drill is that the equipment of required cutting fluid system is simple, but on drilling rod, has the helical flute being processed into, thereby strength and stiffness are poor, are used for jobbing work; Interior chip removal cylindrical drill relies on the pressure of cutting fluid, and smear metal is gone out from drilling rod, therefore need to be equipped with comparatively complicated liquid-supplying system and solve sealing problem, but productivity ratio is high, is applicable to produce by batch.
Utility model content
The utility model proposes a kind of machine holding carbide alloy treapanning drill, solved the interior processing of mechanical processing industry macropore, slow, the inefficient problem of deep hole speed in prior art.
The technical solution of the utility model is achieved in that
Machine holding carbide alloy treapanning drill, comprise shank, described shank one end is connected with process equipment main shaft, the other end is connected with sleeve shaped cutter hub, described sleeve shaped cutter hub outer wall is provided with 4-6 bar helical flute, 1 insert groove is all established in the end of every helical flute, in described insert groove, be provided with carbide cutting blade, described carbide cutting blade is fixed in described insert groove by housing screw that can self-locking, the periphery of described carbide cutting blade is provided with cutting edge, and described cutting edge is by two kinds of carbide chip superimposed compositions.
As the improvement to technique scheme, described carbide chip is equilateral triangle blade, protruding triangular blade, square blade or diamond shaped insert.
As the further improvement to technique scheme, described cutting edge is by diamond shaped insert and protruding triangular blade is superimposed forms.
As the further improvement to technique scheme, described cutting edge is by diamond shaped insert and equilateral triangle blade is superimposed forms.
As the further improvement to technique scheme, described cutting edge is by square blade and protruding triangular blade is superimposed forms.
As the further improvement to technique scheme, described cutting edge is by square blade and equilateral triangle blade is superimposed forms.
As the improvement to technique scheme, the width of rebate of described helical flute is 3-5 times of described cutting edge length, the degree of depth of described helical flute is 1/2-1/3 times of described cutting edge length, and the degree of depth of described helical flute is 1:3-5 with the ratio of the width of rebate of described helical flute.
As the further improvement to technique scheme, described shank be Morse taper shank, 7:24 taper shank, any in handle and cylindrical staight shank is threaded.
Adopted after technique scheme, the beneficial effects of the utility model are:
In the process in normal process hole, the steel of the inside, hole are all processed into iron filings, to consume so a large amount of energy.The low consumed energy-conservation annular cutting tool of high efficiency that the utility model patent provides can carry out annular processing, middle material sleeve out, so both saved the energy, improve again efficiency, raw material are also saved, cover material out can carry out chemical examination and the tension test of material, has very large realistic meaning especially for valuable rare metal.
To be the method for utilizing screws clamp be fixed on the carbide chip of standard on cutter (carrying) body, to carry out annular cutting the utility model patent.Owing to having used alloy blade and the annular cutter hub of high-quality, both can bring into play to greatest extent the potential function of lathe and carry out high speed trepanning, energy-saving and cost-reducing again, low-carbon environment-friendly; Standard insert has several cutting edges simultaneously, when one of them cutting edge wears up to the used time again, only need to change cutting edge, in the time that all cutting edges of whole blade all wear and tear, only need more allowing blade replacement, it is little that this structure can reach cost, and utilization rate is high, also can reach energy-saving and cost-reducing, the object of low-carbon (LC) cutting.
The utility model high efficiency is just to have used indexable machine holding carbide alloy blade, and its cutting speed can reach more than 100 ms/min, and the specification of blade is general international standard, after blade abrasion, unclamp screw, blade is turned to an angle, tighten screw and just can continue to use.Because the precision of blade is higher, the insert groove precision on the cutter hub of installation blade is higher, and the workpiece accuracy that blade clamps rear processing again remains in the tolerance of permission.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment mono-;
Fig. 2 is the cross sectional representation of Fig. 1;
Fig. 3 is the mutual alignment schematic diagram of two kinds of blades in Fig. 1;
Fig. 4 is the structural representation of the utility model embodiment bis-;
Fig. 5 is the mutual alignment schematic diagram of two kinds of blades in Fig. 4;
Fig. 6 is the structural representation of the utility model embodiment tri-;
Fig. 7 is the mutual alignment schematic diagram of two kinds of blades in Fig. 6;
Fig. 8 is the structural representation of the utility model embodiment tetra-;
Fig. 9 is the cross sectional representation of Fig. 8;
Figure 10 is the mutual alignment schematic diagram of two kinds of blades in Fig. 8;
In figure: 1. shank, 2. sleeve shaped cutter hub, 21. helical flutes, 22. insert grooves, 3. carbide cutting blade.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1:
As shown in Figure 1, Figure 2 and Figure 3, machine holding carbide alloy treapanning drill, comprise shank 1, shank 1 one end is connected with process equipment main shaft, the other end is connected with sleeve shaped cutter hub 2, sleeve shaped cutter hub 2 outer walls are provided with 4 helical flutes 21,1 insert groove 22 is all established in the end of every helical flute 21, in insert groove 22, be provided with carbide cutting blade 3, carbide cutting blade 3 is fixed in insert groove 22 by housing screw that can self-locking, the periphery of carbide cutting blade 3 is provided with cutting edge, and cutting edge is by two kinds of carbide chip superimposed compositions.
Carbide chip is equilateral triangle blade, protruding triangular blade, square blade or diamond shaped insert.
Cutting edge is by diamond shaped insert and protruding triangular blade is superimposed forms.
The width of rebate of helical flute 21 is 3 times of cutting edge length, and the degree of depth of helical flute 21 is 1/2 times of cutting edge length, and the degree of depth of helical flute 21 is 1:3 with the ratio of the width of rebate of helical flute 21.
Shank 1 is Morse taper shank.
Embodiment 2:
As shown in Figure 4 and Figure 5, machine holding carbide alloy treapanning drill, comprise shank 1, shank 1 one end is connected with process equipment main shaft, the other end is connected with sleeve shaped cutter hub 2, sleeve shaped cutter hub 2 outer walls are provided with 4 helical flutes 21,1 insert groove 22 is all established in the end of every helical flute 21, in insert groove 22, be provided with carbide cutting blade 3, carbide cutting blade 3 is fixed in insert groove 22 by housing screw that can self-locking, the periphery of carbide cutting blade 3 is provided with cutting edge, and cutting edge is by two kinds of carbide chip superimposed compositions.
Carbide chip is equilateral triangle blade, protruding triangular blade, square blade or diamond shaped insert.
Cutting edge is by diamond shaped insert and equilateral triangle blade is superimposed forms.
The width of rebate of helical flute 21 is 4 times of cutting edge length, and the degree of depth of helical flute 21 is 1/2 times of cutting edge length, and the degree of depth of helical flute 21 is 1:4 with the ratio of the width of rebate of helical flute 21.
The taper shank that shank 1 is 7:24.
Embodiment 3:
As shown in Figure 6 and Figure 7, machine holding carbide alloy treapanning drill, comprise shank 1, shank 1 one end is connected with process equipment main shaft, the other end is connected with sleeve shaped cutter hub 2, sleeve shaped cutter hub 2 outer walls are provided with 4 helical flutes 21,1 insert groove 22 is all established in the end of every helical flute 21, in insert groove 22, be provided with carbide cutting blade 3, carbide cutting blade 3 is fixed in insert groove 22 by housing screw that can self-locking, the periphery of carbide cutting blade 3 is provided with cutting edge, and cutting edge is by two kinds of carbide chip superimposed compositions.
Carbide chip is equilateral triangle blade, protruding triangular blade, square blade or diamond shaped insert.
Cutting edge is by square blade and protruding triangular blade is superimposed forms.
The width of rebate of helical flute 21 is 4 times of cutting edge length, and the degree of depth of helical flute 21 is 1/3 times of cutting edge length, and the degree of depth of helical flute 21 is 5 with the ratio of the width of rebate of helical flute 21.
Shank 1 is the handle that is threaded.
Embodiment 4:
As shown in Fig. 8, Fig. 9 and Figure 10, machine holding carbide alloy treapanning drill, comprise shank 1, shank 1 one end is connected with process equipment main shaft, the other end is connected with sleeve shaped cutter hub 2, sleeve shaped cutter hub 2 outer walls are provided with 6 helical flutes 21,1 insert groove 22 is all established in the end of every helical flute 21, in insert groove 22, be provided with carbide cutting blade 3, carbide cutting blade 3 is fixed in insert groove 22 by housing screw that can self-locking, the periphery of carbide cutting blade 3 is provided with cutting edge, and cutting edge is by two kinds of carbide chip superimposed compositions.
Carbide chip is equilateral triangle blade, protruding triangular blade, square blade or diamond shaped insert.
Cutting edge is by square blade and equilateral triangle blade is superimposed forms.
The width of rebate of helical flute 21 is 5 times of cutting edge length, and the degree of depth of helical flute 21 is 1/3 times of cutting edge length, and the degree of depth of helical flute 21 is 5 with the ratio of the width of rebate of helical flute 21.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. machine holding carbide alloy treapanning drill, comprise shank, described shank one end is connected with process equipment main shaft, the other end is connected with sleeve shaped cutter hub, it is characterized in that, described sleeve shaped cutter hub outer wall is provided with 4-6 bar helical flute, 1 insert groove is all established in the end of every helical flute, in described insert groove, be provided with carbide cutting blade, described carbide cutting blade is fixed in described insert groove by housing screw that can self-locking, the periphery of described carbide cutting blade is provided with cutting edge, and described cutting edge is by two kinds of carbide chip superimposed compositions.
2. machine holding carbide alloy treapanning drill as claimed in claim 1, is characterized in that: described carbide chip is equilateral triangle blade, protruding triangular blade, square blade or diamond shaped insert.
3. machine holding carbide alloy treapanning drill as claimed in claim 2, is characterized in that: described cutting edge is by diamond shaped insert and protruding triangular blade is superimposed forms.
4. machine holding carbide alloy treapanning drill as claimed in claim 2, is characterized in that: described cutting edge is by diamond shaped insert and equilateral triangle blade is superimposed forms.
5. machine holding carbide alloy treapanning drill as claimed in claim 2, is characterized in that: described cutting edge is by square blade and protruding triangular blade is superimposed forms.
6. machine holding carbide alloy treapanning drill as claimed in claim 2, is characterized in that: described cutting edge is by square blade and equilateral triangle blade is superimposed forms.
7. machine holding carbide alloy treapanning drill as claimed in claim 1, it is characterized in that: the width of rebate of described helical flute is 3-5 times of described cutting edge length, the degree of depth of described helical flute is 1/2-1/3 times of described cutting edge length, and the degree of depth of described helical flute is 1:3-5 with the ratio of the width of rebate of described helical flute.
8. the machine holding carbide alloy treapanning drill as described in claim 1-7 any one, is characterized in that: described shank be Morse taper shank, 7:24 taper shank, any in handle and cylindrical staight shank is threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320788182.4U CN203636029U (en) | 2013-11-29 | 2013-11-29 | Machine clamp hard alloy trepanning drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320788182.4U CN203636029U (en) | 2013-11-29 | 2013-11-29 | Machine clamp hard alloy trepanning drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203636029U true CN203636029U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320788182.4U Expired - Fee Related CN203636029U (en) | 2013-11-29 | 2013-11-29 | Machine clamp hard alloy trepanning drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203636029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658771A (en) * | 2013-11-29 | 2014-03-26 | 河南省蓝剑工具科技有限公司 | Machine clamp hard alloy jacking drill bit |
| CN104148709A (en) * | 2014-06-30 | 2014-11-19 | 江阴乐高能源装备有限公司 | Trepanning tool |
-
2013
- 2013-11-29 CN CN201320788182.4U patent/CN203636029U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658771A (en) * | 2013-11-29 | 2014-03-26 | 河南省蓝剑工具科技有限公司 | Machine clamp hard alloy jacking drill bit |
| CN103658771B (en) * | 2013-11-29 | 2016-02-24 | 河南省蓝剑工具科技有限公司 | Machine holding carbide alloy treapanning drill |
| CN104148709A (en) * | 2014-06-30 | 2014-11-19 | 江阴乐高能源装备有限公司 | Trepanning tool |
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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: 20140611 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |