CN207171033U - A kind of combined type drilling reamer for fine cut shallow bore hole - Google Patents
A kind of combined type drilling reamer for fine cut shallow bore hole Download PDFInfo
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- CN207171033U CN207171033U CN201721123503.3U CN201721123503U CN207171033U CN 207171033 U CN207171033 U CN 207171033U CN 201721123503 U CN201721123503 U CN 201721123503U CN 207171033 U CN207171033 U CN 207171033U
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Abstract
The utility model provides a kind of combined type drilling reamer for fine cut shallow bore hole, and it can solve the problems, such as using the existing cutter cumbersome, high processing costs of existing processing and can not meet processing request.It includes a cylindrical cutter body and the coaxially formed cutter head in cutter hub one end, formed with two sword valves on cutter head, chip removal major trough is formed between two sword valves, three lands are respectively sequentially provided with two sword valves along clockwise direction, three lands are respectively the first land, second land and the 3rd land, three lands on two sword valves and two sword valves are corresponding symmetrical with cutter hub kernel of section, between the first land and the second land on sword valve, chip removal pair groove is formed between second land and the 3rd land respectively, first land on two sword valves, second land and the 3rd land twist extend along the cutter hub length direction, height of first land in diametric(al) is less than the second land, height of 3rd land in diametric(al).
Description
Technical field
Field of machining is the utility model is related to, is especially for common PRECISION HOLE in processing hydraulic power valve
Process tool field, specially a kind of combined type drilling reamer for fine cut shallow bore hole.
Background technology
Hydraulic power valve is the core component of engineering machinery, and the wherein processing of the packaged distribution of valve is answered due to its dimensional structure
It is miscellaneous, size is more for association, required precision is high and as the difficult point processed.Current most of cutting tool factories are for being used for hydraulic power valve valve
This common H7/H6 PRECISION HOLEs of packaged distribution, roughness are below 1.6, hole depth is no more than the shallow bore hole in five times of apertures more using passing
Conservative reliable the one of system bores design of the hinge (see Fig. 1 and Fig. 2), i.e., first remaining with being stayed after drill bit roughing hole position to reamer
Amount, then fine cut processing is carried out to roughing hole with reamer, although this scheme can reach the processing request of pilot hole, its
Process cumbersome, high processing costs；Also occur boring (see Fig. 3 and Fig. 4) to add using the fine cut of double seamed edges designs in the art at present
Work such pilot hole, although it simultaneous manufacturing pilot hole and can improve the machining accuracy in hole by increasing support,
It is that the Hole Wall Roughness that the pilot hole processed is bored using the fine cut of this pair of seamed edge design can not often meet processing request.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of combined type drilling reamer for fine cut shallow bore hole, it can be solved
The problem of using processing cumbersome, high processing costs existing for existing cutter and processing request can not be met.
Its technical scheme is a kind of combined type drilling reamer for fine cut shallow bore hole, and it includes cutter hub and is formed at cutter hub one
The cutter head at end, the cutter hub are a cylinder, it is characterised in that：Formed with two sword valves, two sword valves on the cutter head
Between form chip removal major trough, three lands, three lands point are respectively sequentially provided with described two sword valves along clockwise direction
Not Wei the first land, the second land and the 3rd land, three lands on described two sword valves and described two sword valves are right
That answers is symmetrical with cutter hub kernel of section, between the first land and the second land on the sword valve, the second land and the 3rd land
Between form chip removal pair groove respectively, first land, the second land and the 3rd land on described two sword valves are along described
Cutter hub length direction twist extends, and height of first land in diametric(al) is less than second land, the 3rd
Height of the land in diametric(al).
Further, height of first land in diametric(al) than second land, the 3rd land in diametric(al)
On the low 0.02mm~0.04mm of height.
Further, the second land on described two sword valves, on the 3rd land from cutter head end to the cutter hub other end simultaneously
Front edge band, rear end land are provided with along spiral extension direction, the diameter of the rear end land is more than the diameter of front edge band,
And connected between front edge band and rear end land by transitional edges band transition integral so as to forming hierarchic structure.
Further, it is made up of the trade mark of the hard alloy of ISO01~20.
Further, it is made up of the trade mark of the hard alloy of ISO20~30.
The beneficial effects of the utility model are：Formed with edge respectively on two sword valves while two sword valves on its cutter head
Sequentially form clockwise and chip removal major trough, first are formed between the first land, the second land and the 3rd land and two sword valves
Chip removal pair groove is formed between land and the second land and between the second land and the 3rd land respectively again, so as to form the sword of three groove six
Cutter head structure；Wherein, three chip areas allow and possess chip space complete enough during cutting；And divide on each sword valve
Not She You three lands, frictional force when drilling and reaming can be greatly reduced, and height of first land in diametric(al) is less than
The height of second land, the 3rd land in diametric(al) can be always ensured that on two sword valves during cutter rotates
First land first participates in cutting so as to play a part of roughing drilling, and the second land, the 3rd land then play ream simultaneously
Effect, so as to reach the purpose that drilling and ream organically combine by six swords, not only can guarantee that higher machining accuracy, and
Bottom outlet roughing process is no longer needed, realizes that a cutter is completed to drill and ream and processes and can meet wanting for hole wall surface roughness
Ask, effectively reduce the number of changing knife in process, improve stock-removing efficiency and operating efficiency；In addition, two sword valve
On the second land, the 3rd land be respectively provided with hierarchic structure, hierarchic structure can be used for processing orifice chamfer, so as to
Orifice chamfer is molded while pilot hole is drilled and reamed, further increases processing efficiency.
Brief description of the drawings
Fig. 1 is the structural representation that tradition one bores drilling tool in a hinge scheme；
Fig. 2 is the structural representation that tradition one bores reamer in a hinge scheme；
Fig. 3 is the structural representation of existing double seamed edge smoothing tools；
Fig. 4 is that Fig. 3 is left view structural representation；
Fig. 5 is a kind of structural representation of combined type drilling reamer for fine cut shallow bore hole of the utility model；
Fig. 6 is Fig. 4 left view mplifying structure schematic diagram.
Reference in figure：10- cutter hubs, 20- cutter heads, 21a- sword valves, 21b- sword valves, the lands of 22- first, 23- second
Land, 231- front edge bands, 232- transitional edges bands, 233- rear ends land, the lands of 24- the 3rd, 241- front edge bands, 242- transition
Land, 243- rear ends land, 31- chip removal major troughs, 32- chip removal pair grooves, 33- chip removal pair grooves.
Embodiment
See Fig. 5 and Fig. 6, a kind of combined type drilling reamer for fine cut shallow bore hole of the utility model, it includes being a cylinder
The cutter hub 10 and the coaxially formed cutter head 20 in cutter hub one end opened, formed with two sword valves 21a, 21b, two sword valves on cutter head 20
Chip removal major trough 31 is formed between 21a, 21b, three swords are respectively sequentially provided with along clockwise direction on two sword valves 21a, 21b
Band, three lands are respectively the first land 22, the second land 23 and the 3rd land 24, two sword valve 21a, 21b and two
Three lands on sword valve 21a, 21b are respectively accordingly symmetrical with cutter hub kernel of section, the first land 22 on sword valve and
Between two lands 23, chip removal pair groove 32,33, two sword valves 21a, 21b are formed between the second land 23 and the 3rd land 24 respectively
On the first land 22, the second land 23 and the 3rd land 24 twist extend along cutter hub length direction, the first land 22 exists
Height in diametric(al) is less than the second land 23, height of the 3rd land 24 in diametric(al).
Preferably, height of first land 22 in diametric(al) than the second land 23, the 3rd land 24 in diametric(al)
On the low 0.02mm~0.04mm of height.
From cutter head end to the cutter hub other end and edge on the second land 23, the 3rd land 24 on two sword valves 21a, 21b
Spiral extension direction is provided with front edge band 231,241, rear end land 233,243, and the diameter of rear end land 233,243 is more than
The diameter of front edge band 231,241, and pass through transitional edges respectively between front edge band 231,241 and rear end land 233,243
Band 232,242 transition connection are integral so as to forming hierarchic structure.
A kind of combined type drilling reamer for fine cut shallow bore hole of the utility model is by wearability is good, toughness is high hard alloy bar
Material is made, and according to the corresponding trade mark of the different choice of machined material, ISO01 is used when machined material is high-strength material
~20 hard alloy bar, when machined material is low-intensity material using the hard alloy bar of ISO01~20, so that
Take into account the cutting ability of drill bit and reamer.
In the sword formula combined type drilling reamer of three groove six of the present utility model, chip removal major trough 31 and chip removal pair groove 32,33 have played
The chip removal effect of effect, and can realize multiple reconditioning, three lands 22 on two sword valves 21a, 21b, 23,24 can be significantly
Frictional force is reduced, two of which sword valve 21a, 21b the first land 22 mainly play drill bit, the second land 23, the 3rd sword
With 24 it is main play ream, the land 23 of the first land 22 to the second, the low 0.02mm~0.04mm of the diameter of the 3rd land 24,
So among the process of cutter rotation, ensure that the first land 22 on two sword valves 21a, 21b first participates in cutting forever, play
The effect that roughing is bored, ensure that the second land 23 on two sword valves 21a, 21b, the 3rd land 24 can play ream simultaneously
Feature, in design using six lands radial load and tangential force make a concerted effort play a part of to drill and ream.Three chip areas to cut
Chip space complete enough can be possessed when cutting, reach the purpose that drilling and ream organically combine by six swords, with ensure compared with
High machining accuracy；See on the whole, do not need bottom outlet during using the utility model combined type drilling reamer, directly process, therefore,
Roughing process can be saved, improve operating efficiency.Post processing is existed script addition using techniques such as physical vapor depositions (PVD)
A variety of precious metals of material internal are coated in tool surface in a manner of compound state, both improve cutting performance, again can be big
It is big to reduce material cost.By coating deposition techniques, firm face coat can play wear-resistant, resistance to heat-insulated and surface lubrication
Etc. a variety of effects.
The sword fine cut shallow bore hole combined type drilling reamer of three groove of the utility model six compared with traditional design, cut accurate shallow bore hole,
During cast iron class workpiece, cost is saved, improves efficiency, improves surface roughness etc. very advantageous so that cutting speed can be with
Improve 80%~90%；Steel part is cut, during aluminium alloy class material, cutting speed 60%~70% can be improved, simultaneously because drilling and reaming
Compound particular design, stock-removing efficiency is greatly improved, increase utilization rate of equipment and installations, reduce production cost.
The utility model drilling reamer is applied in vertical machining centre, and machine tool capability is preferable, machined material cast iron class, firmly
HB150-200, main shaft form BT50 are spent, interior cold mode is interior cold, and specific cutting parameter see the table below：
, it is apparent that combined type drilling reamer of the present utility model is obvious in processing efficiency, cutting precision from upper table
A hinge is bored higher than tradition one, double seamed edge fine cuts are drilled with meter.
In summary, the utility model combined type drilling reamer, three chip areas allow and possess enough appearances during cutting
Consider space to be worth doing, the purpose of drilling and ream combination is reached by six lands, to ensure higher machining accuracy；On the whole
See, do not need bottom outlet during using the utility model combined type drilling reamer, directly process, therefore, roughing process can be saved, improve
Operating efficiency.It is bad in operating mode, in the case that allowance is uneven, to ensure to be processed the precision and roughness in hole, suitably
Using the less amount of feeding.When operating mode is good, when allowance is uniform, now there is sufficiently large cutting force, may be selected larger
The amount of feeding, cutting speed can improve 50%~80%, and can increase multiple-cutting-edge chip breaking ability, improve 2-4 times of stock-removing efficiency.Can be wide
The general shallow bore hole higher suitable for PRECISION HOLE H6 and roughness requirements, economic benefit and social effect can significantly improve, application prospect
It is good.
It the above is only concrete application example of the present utility model, do not form any limit to the scope of protection of the utility model
System.All technical schemes formed using equivalent transformation or equivalent replacement, all fall within the hair protection of the utility model rights protection
Within the scope of.
Claims (5)
1. a kind of combined type drilling reamer for fine cut shallow bore hole, it includes a cylindrical cutter body (10) and coaxially formed in cutter hub
(10) cutter head (20) of one end, it is characterised in that：Formed with two sword valves (21a, 21b) on the cutter head (20), described in two
Chip removal major trough (31) is formed between sword valve (21a, 21b), on described two sword valves (21a, 21b) along clockwise direction respectively according to
Secondary to be provided with three lands, three lands are respectively the first land (22), the second land (23) and the 3rd land (24), described two
Three lands (22,23,24) on sword valve (21a, 21b) and described two sword valves (21a, 21b) are corresponding with cutter hub section
Face Central Symmetry, between the first land (22) and the second land (23) on the sword valve, the second land (23) and the 3rd land
(24) chip removal pair groove (32,33) is formed between respectively, first land (22) on described two sword valves (21a, 21b),
Two lands (23) and the 3rd land (24) twist extend along the cutter hub length direction, and first land (22) is straight
Height on the direction of footpath is less than second land (23), height of the 3rd land (24) in diametric(al).
A kind of 2. combined type drilling reamer for fine cut shallow bore hole according to claim 1, it is characterised in that：First land
(22) height in diametric(al) is lower than second land (23), height of the 3rd land (24) in diametric(al)
0.02mm~0.04mm.
A kind of 3. combined type drilling reamer for fine cut shallow bore hole according to claim 1 or 2, it is characterised in that：Described two
Respectively from cutter head end to the cutter hub other end and edge on the second land (23), the 3rd land (24) on individual sword valve (21a, 21b)
Spiral extension direction is provided with front edge band (231,241), rear end land (233,243), the rear end land (233,243)
Diameter be more than the diameter of front edge band (231,241), and front edge band (231,241) and rear end land (233,243) it
Between connected by transitional edges band (232,242) transition it is integral so as to forming hierarchic structure.
A kind of 4. combined type drilling reamer for fine cut shallow bore hole according to claim 3, it is characterised in that：It is by the trade mark
The hard alloy of ISO01~20 is made.
A kind of 5. combined type drilling reamer for fine cut shallow bore hole according to claim 3, it is characterised in that：It is by the trade mark
The hard alloy of ISO20~30 is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123503.3U CN207171033U (en) | 2017-09-04 | 2017-09-04 | A kind of combined type drilling reamer for fine cut shallow bore hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721123503.3U CN207171033U (en) | 2017-09-04 | 2017-09-04 | A kind of combined type drilling reamer for fine cut shallow bore hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207171033U true CN207171033U (en) | 2018-04-03 |
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ID=61742324
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721123503.3U Active CN207171033U (en) | 2017-09-04 | 2017-09-04 | A kind of combined type drilling reamer for fine cut shallow bore hole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498096A (en) * | 2017-09-04 | 2017-12-22 | 苏州阿诺精密切削技术有限公司 | Combined type drilling reamer for fine cut shallow bore hole |
| CN111014785A (en) * | 2019-12-28 | 2020-04-17 | 中山市光和精密科技有限公司 | Double-edge chamfering extrusion drilling reamer |
-
2017
- 2017-09-04 CN CN201721123503.3U patent/CN207171033U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498096A (en) * | 2017-09-04 | 2017-12-22 | 苏州阿诺精密切削技术有限公司 | Combined type drilling reamer for fine cut shallow bore hole |
| CN111014785A (en) * | 2019-12-28 | 2020-04-17 | 中山市光和精密科技有限公司 | Double-edge chamfering extrusion drilling reamer |
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