CN206779530U - A kind of combined drill - Google Patents
A kind of combined drill Download PDFInfo
- Publication number
- CN206779530U CN206779530U CN201720578082.7U CN201720578082U CN206779530U CN 206779530 U CN206779530 U CN 206779530U CN 201720578082 U CN201720578082 U CN 201720578082U CN 206779530 U CN206779530 U CN 206779530U
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- CN
- China
- Prior art keywords
- table top
- knife bar
- blade
- knife
- cutter groove
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Abstract
The utility model is to solve the defects of existing technology can not once bore multi-step macropore, disclose a kind of combined drill, including knife bar, it is characterized in that, knife bar top is provided with the conical surface, oil groove is provided with below the conical surface, the lower end of knife bar is provided with first table top vertical with knife bar, multiple first cutter grooves are radially distributed with first table top, the first blade is designed with each first cutter groove, two the first chip areas being placed on knife bar are provided with above first cutter groove, the second table top being placed in below oil groove is provided with above first table top, second table top is the annular being axially distributed along knife bar, second table top is parallel with the first table top, the center of second table top in cutter spindle in the heart, the second cutter groove is evenly equipped with each second table top, each second cutter groove is provided with the second blade, the second chip area being placed on knife bar is provided with above second cutter groove.The utility model is boring multi-step macropore field, and efficiency three-to-four-fold higher than conventional method efficiency, exploitativeness is high, easy to spread.
Description
Technical field
It the utility model is related to machining drilling field, particularly a kind of combined drill.
Background technology
Drill bit, it is a kind of final executive component for being used to drill on fixture, it is therefore an objective to got in specified position
Circular hole with certain size.
Various drill bits on sale on the market at present, size, shape, material are varied, but which kind of drill bit is not
Can be by more size one-shot formings, especially for for freezing the macropore on valve.Valve is freezed as high-air-tightness workpiece, it is more
Carried out using casting, it is then machining.
Conventional drill considers that bit bore diameter is excessive, certainly will cause the linear velocity and edge linear differential of bit central
It is different excessive, it may appear that " allow knife " phenomenon, the position in hole also has deviation.So the multi-step hole for 80- 150 is even more nothing
Method is one-time formed.
The macropore on valve is freezed, traditional processing method is the preformed hole of subdrilling 80, then gradual reaming, last ream go out
Step surface, and expense expenditure is very big, requires especially high to operating personnel's skill quality.For now, the vertical drill in China
Maximum a diameter of 80 that can reach, and efficiency is low, and cost is too high.
When conventional drill processes more than 80 macropore, drill bit needs frequently to whet a knife, and even needs to change when serious, shadow
Rhythm of production is rung, waste of manpower, operating personnel is also needed to during sharpening and grasp certain sharpening level, are virtually increased
Operation difficulty degree.
Therefore, conventional drill has the following disadvantages：
1st, one-shot forming is unable to when conventional drill processes more than 80 macropore；
2nd, conventional drill can not more size one-shot formings；
3rd, conventional drill can not change cutter head；
4th, conventional drill efficiency is low, oversize during drillman；
5th, conventional drill cost is too high, and sharpening number is frequent, too high to sharpening technical requirements.
So the utility model provides a kind of combined drill to solve problem above.
Utility model content
For the above situation, to overcome the defect of prior art, the utility model provides a kind of combined drill, effectively
Solve existing drill bit and do not bore macropore, more sizes can not one-shot forming, operating efficiency is low, expensive, to operative employee
It is required that the problem of too high.
The utility model is a kind of combined drill, including knife bar, it is characterised in that knife bar top is provided with the conical surface, the conical surface
Lower section, which is provided with, is placed in the oil groove of knife bar periphery, and the lower end of knife bar is provided with first table top vertical with knife bar, on the first table top
Multiple first cutter grooves are radially distributed with, the first blade is designed with each first cutter groove, is provided with above the first cutter groove and is placed in knife bar
On two the first chip areas, two the first chip areas are symmetrical centered on cutter spindle on table top.
Preferably, the second table top being placed in below oil groove is provided with above the first described table top, the second table top is along knife bar
The annular being axially distributed, the annular inner race minimum diameter of the second table top are not less than the diameter of the first table top, the second table top and first
Table top is parallel, and the center of the second table top in the heart, is evenly equipped with the second cutter groove, each second cutter groove in cutter spindle on each second table top
The second blade is provided with, the second chip area being placed on knife bar is provided with above the second cutter groove.
Preferably, the second described table top is provided with multiple, and diameter is pressed from small to large in multiple second step faces along knife bar axle center
Order be arranged in order.
Preferably, the first described blade and the second blade are replaceable carbide chip, the first blade and second
There are multiple cutting edges on blade.
Preferably, described knife bar center is provided with the deep hole of axial direction, and the first chip area is provided with spout, and spout connects with deep hole
It is logical.
Preferably, described each first blade and the second blade rear are designed with being placed on the first table top or the second table top
Projection, raised height is respectively smaller than the height of the first blade and the second blade.
Preferably, described raised lower surface is knife face after composition, and rear knife face and the first table top form 5 ° to 15 ° of folder
Angle.
The utility model clever structure, has the characteristics of close structure, rationally distributed, multiple functional, greatly improves existing
Have technology processing macropore limitation, more size stepped holes can one-shot forming, cost is cheap, substantially increases the efficiency of drilling.
Brief description of the drawings
Fig. 1 is the utility model entirety assembling schematic diagram.
Fig. 2 is the partial sectional view of the utility model knife bar 1.
Fig. 3 is the utility model processing effect schematic diagram.
Embodiment
About of the present utility model foregoing and other technology contents, feature and effect, in following cooperation with reference to figures 1 through figure
In the detailed description of 3 pairs of embodiments, can clearly it present.The structure content being previously mentioned in following examples, it is with explanation
Book accompanying drawing is reference.
Each exemplary embodiment of the present utility model is described below with reference to accompanying drawings.
Embodiment one, the utility model are a kind of combined drill, including knife bar 1, and the top of knife bar 1 is the conical surface 2, the conical surface
2 are used for installing with Special scalpel handle and coordinate, and the lower section of the conical surface 2 is provided with the oil groove 3 for being placed in the periphery of knife bar 1, on the lower surface of knife bar
The first table top 4 is machined with, the first table top 4 is vertical with knife bar 1, along in a diametric(al) on the first table top, is uniform-distribution with
Multiple first cutter grooves 5, the first blade 6 is installed with the first cutter groove 5, the first blade 6 is replaceable carbide chip,
The top of first cutter groove 5 is provided with two the first chip areas 7 being placed on knife bar 1, and two the first chip areas 7 close on the first table top 4
It is distributed in the Central Symmetry of knife bar 1, and the first table top 4 is divided into four parts.
Embodiment two, on the basis of embodiment one, there are the second table top 8, the second table top 8 and in the top of the first table top 4
One table top 4 is parallel, and the second table top 8 is annular in the lower section of oil groove 3, the second table top 8, and annular minimum diameter is not less than First
The maximum gauge in face 8, annular on be evenly equipped with multiple second cutter grooves 9, be installed with the second blade in each second cutter groove 9
601, the second blade 601 is a replaceable carbide chip, and the top of the second cutter groove 5 is provided with second be placed on knife bar 1
Chip area 9.
Embodiment three, on the basis of embodiment one, the second table top 8 have it is multiple, multiple second table tops 8 along knife bar 1 axially
According to diameter, order is arranged in order from lower to upper from small to large, and the diameter of each second table top 8 will be bigger than previous.
Example IV, on the basis of embodiment two, the first blade 6 and the second blade 601 are replaceable hard alloy
There are multiple cutting edges on blade, the first blade 6 and the second blade 601, the first blade 6 and the second blade can use repeatedly, and first
The blade 601 of blade 6 and second is fixed with knife bar 1 by positioning screw respectively.
Embodiment five, on the basis of embodiment one, there is axial deep hole 11 at the center of knife bar 1, and the first chip area 7 is provided with
Spout 12, deep hole 11 are blind holes, and deep hole 11 connects with spout 12, and high-pressure coolant ejects by deep hole 11 from spout 12 successively
Come, working position is cooled down, while waste material is led out.
Embodiment six, on the basis of embodiment two, each rear of first blade, 6 and second blade 601 have one it is convex
13 are played, projection 13 is integrated with the first table top 4 or the second table top 8, and raised 13 pair of first blade 601 of blade 6 and second plays branch
Support acts on, and strengthens the intensity of the first blade 6 and the second blade 601, and the height of projection 13 is less than the first blade 6 and the second blade
601 height.
Embodiment seven, on the basis of embodiment two, the lower surface of described projection 13 is knife face 14 after composition, rear knife face
14 are divided into two parts by the first cutter groove 5, and two parts are distributed with the Central Symmetry of the first table top 4, and rear knife face 14 is with the first knife
5 ° to 15 ° of angle is formed centered on the diameter at the place of groove 5 with the first table top 4.
It is well known that freezing valve is a kind of part high to air-tightness requirement, for transporting liquefied gas in freezing place
Body, such as oxygen, nitrogen, hydrogen, helium.If freezing valve air-tightness is not tight, valve rod meeting filler freezes, and can cause to leak, gently then pollute ring
Border, it is heavy then set off an explosion, the life and health of people is seriously endangered, so the valve body that people use is largely to cast then
Drill what is finally just come out again, but from the point of view of current market, especially limit to for the molding mode in the hole on this valve, use
Traditional reprocessabilty, reaming again and again can be only achieved production purpose, and process is cumbersome tediously long, virtually adds difficult processing
Coefficient is spent, enterprise has to take into account that the technology for improving operator, reaches reduction scrappage with this, but in the long run, this
It is not a kind of most suitable mode, economically sees, this is nor very worthwhile, on the contrary, enterprise expends a tremendous amount of effort to communicate wealth
Power puts into production cost, and in this case, the profit of enterprise is greatly reduced, and enterprise competitiveness also weakens therewith, so
How efficient and cheap production freezes valve body into key.
Valve body is freezed, during conventional machining process is more than 80mm holes in drill straight footpath, primarily to preferably fixed
Position, can bore a pilot hole, then reaming step by step again in advance, process interior each size of portalling successively in reaming, if with
Big drill bit, which directly punches no positioning center hole, will produce " allow knife " phenomenon, and the hole position made is deviated.But the utility model
A kind of combined drill is provided, the utility model can directly drill out diameter and be less than 80mm in the case of no preformed hole
Stepped hole in the range of to 150mm, and one-shot forming, eliminate and beat preformed hole link, without multiple reaming, repeatedly ream platform
Terrace.
In addition, merit attention, the outside of the utility model knife bar 1 is furnished with bearing, and bearing is at the cylinder position of knife bar 1 and oil
Groove 3 coordinates, and bearing is achieved the utility model rotation and feed motion；The utility model is using spraying in coolant
Mode, and coolant is the very fast ejection by HIGH PRESSURE TREATMENT, and the quick of maximum possible takes away heat and waste material so that improves
Rotating speed is possibly realized, and for rotating speed up to 300r/s, operating efficiency is 4 to 5 times commonly bored, substantially increases production efficiency.
The utility model operationally significantly improves relative to also having for traditional processing mode, and traditional handicraft requires more
It is secondary to repeat, multiple bearing and repeatedly examine, higher is required to the technological literacy of operating personnel, common employee will also be through long
The training of time could be on duty, adds enterprise's input, and product cost also improves.The utility model provides a kind of combined type
Drill bit, operationally, only need simple training on duty can operate, repeatable accuracy is high, without positioning repeatedly, is suitably for high-volume
Production.
Specifically in use, it is assumed that the stepped hole that now process in an accompanying drawing 3, wherein d and D are both less than 150mm,
A knife bar 1 is first produced, there is second table top 8 on knife bar 1, the distance between the first table top 4 and the second table top 8 are h, oil
Distance is more than H between the table top 8 of groove 3 and second, and the maximum gauge of the first table top 4 is d, and the maximum gauge of the second table top 8 is D, the conical surface 2
Made according to Morse taper shank standard, deep hole 11 forms high-pressure coolant passage, deep hole 11 and high-pressure coolant pipeline with spout 12
Connection；Being fitted close on periphery at oil groove 3 has bearing, and bearing is arranged on special handle of a knife.
When bit operation, high-pressure coolant ejects by deep hole 11 from spout 12, the first knife on the first table top 4
Piece 6 contacts workpiece at first, cuts the waste material to get off as high-pressure coolant washes away out, while also reduce the temperature of working position
Degree, as a kind of combined drill of the utility model deepens continuously, the second blade 601 on the second table top 8 is started working, now
The waste material and caused heat cut is pulled away also with the flowing of high-pressure coolant, until machining, inspection man
Part.
The simply a kind of situation being previously mentioned in above-mentioned specifically used method, specific exactly the second table top 8 can have more
It is individual, that is to say, that multiple step surfaces, and one-shot forming can be processed.Multiple second table tops 8 are from top to bottom according to from small to large
Order be arranged in order, as long as the feeding speed at handle of a knife center and handle of a knife periphery feeding speed are in the reasonable scope, it is possible to appoint
Meaning increase.
The described table top 4 of rear knife face 14 and first forms 5 ° to 15 ° of angle, the rear blade 6 of knife face 14 and first or the
The position highest of two blades 601 contact, but contact site must not be higher than the height of the first blade 6 or the second blade 601, then
Extend at an angle toward both sides.If rear knife face 14 is parallel with the first table top 4, just occur cutter can not down cut or
The size requirement in predetermined hole can not be completed, when serious, in fact it could happen that " allow knife " phenomenon, cause the tolerance in hole bigger than normal, when serious,
It may result in workpiece to scrap in batch, suffer heavy losses.The angle that knife face 14 is formed with the first table top 4 afterwards can effectively mitigate
Friction between cutter and workpiece, the abrasion of stage property can also be reduced, make the dimensional tolerance in hole be easier to control, reduce workpiece report
Useless risk, avoid by great economic loss.
It is worth noting that, multiple first blades 6 in the first cutter groove 5 are distributed along the uniform diameter of the first table top 4
Multiple alloy knifes, multiple first blades 6 are in same level.When in use, the first blade 6 contacts work to the utility model at first
Part, as the depth in hole becomes big, the second table top 8 just contacts workpiece.
It will be noted that although on the basis of with reference to each embodiment, the utility model is retouched in the description
State and be illustrated in the accompanying drawings, but it will be understood to those skilled in the art that above-described embodiment is only preferable implements
Mode, some technical characteristics in embodiment to solve specific technical problem may it is not necessary to, so as to not have
These technical characteristics are either omitted without the solution of influence technique problem or the formation of technical scheme.Further, a reality
The feature, key element and/or function for applying example can be appropriate with the feature, key element and/or function of other one or more embodiments
It is mutually combined, combination or cooperation, unless the combination, combination or coordinate can not substantially be implemented.
Claims (7)
1. a kind of combined drill, including knife bar（1）, it is characterised in that knife bar（1）Top is provided with the conical surface（2）, the conical surface（2）Under
Side is provided with and is placed in knife bar（1）The oil groove of periphery（3）, knife bar（1）Lower end be provided with and knife bar（1）The first vertical table top
（4）, the first table top（4）On be radially distributed with multiple first cutter grooves（5）, each first cutter groove（5）On be designed with the first blade
（6）, the first cutter groove（5）Top is provided with and is placed in knife bar（1）On two the first chip areas（7）, two the first chip areas（7）
One table top（4）On with knife bar（1）It is symmetrical centered on axle center.
A kind of 2. combined drill according to claim 1, it is characterised in that the first table top（4）Top is provided with and is placed in oil
Groove（3）Second table top of lower section（8）, the second table top（8）For along knife bar（1）The annular being axially distributed, the second table top（8）Annular
Inner ring minimum diameter is not less than the first table top（4）Diameter, the second table top（8）With the first table top（4）It is parallel, the second table top（8）
Center in knife bar（1）On axle center, each second table top（8）On be evenly equipped with the second cutter groove（9）, each second cutter groove（9）On set
There is the second blade（601）, the second cutter groove（9）Top is provided with and is placed in knife bar（1）On the second chip area（10）.
A kind of 3. combined drill according to claim 2, it is characterised in that the second described table top（8）Provided with multiple,
Multiple second table tops（8）Along knife bar（1）Axle center is arranged in order by the order of diameter from small to large from lower to upper.
A kind of 4. combined drill according to claim 2, it is characterised in that the first described blade（6）With the second knife
Piece（601）For replaceable carbide chip, the first blade（6）With the second blade（601）On have multiple cutting edges.
A kind of 5. combined drill according to claim 1, it is characterised in that described knife bar（1）Center is provided with axially
Deep hole（11）, the first chip area（7）It is provided with spout（12）, spout（12）With deep hole（11）Connection.
A kind of 6. combined drill according to claim 2, it is characterised in that the first described blade（6）With the second knife
Piece（601）Rear is designed with one and is placed in the first table top（4）Or second table top（8）On projection（13）, it is raised（13）Height
It is respectively smaller than the first blade（6）With the second blade（601）Height.
A kind of 7. combined drill according to claim 6, it is characterised in that described projection（13）Lower surface be group
Into rear knife face（14）, rear knife face（14）With the first table top（4）Form 5 ° to 15 ° of angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720578082.7U CN206779530U (en) | 2017-05-23 | 2017-05-23 | A kind of combined drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720578082.7U CN206779530U (en) | 2017-05-23 | 2017-05-23 | A kind of combined drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206779530U true CN206779530U (en) | 2017-12-22 |
Family
ID=60711822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720578082.7U Expired - Fee Related CN206779530U (en) | 2017-05-23 | 2017-05-23 | A kind of combined drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206779530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975773A (en) * | 2017-05-23 | 2017-07-25 | 郑州中原科技工程研究院有限公司 | A kind of combined drill |
-
2017
- 2017-05-23 CN CN201720578082.7U patent/CN206779530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975773A (en) * | 2017-05-23 | 2017-07-25 | 郑州中原科技工程研究院有限公司 | A kind of combined drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20200523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |