CN106475620A - Detachable rotary cutter - Google Patents
Detachable rotary cutter Download PDFInfo
- Publication number
- CN106475620A CN106475620A CN201610938745.1A CN201610938745A CN106475620A CN 106475620 A CN106475620 A CN 106475620A CN 201610938745 A CN201610938745 A CN 201610938745A CN 106475620 A CN106475620 A CN 106475620A
- Authority
- CN
- China
- Prior art keywords
- face
- rotary cutter
- driving groove
- cutting portion
- transition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/02—Connections between the shanks and detachable cutting heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a kind of detachable rotary cutter, including cutting part and hold assembly, cutting part includes the cutting portion for connecting as one and connecting portion, connecting portion is threadeded with hold assembly, cutting portion is provided with intersecting end face and side face, cutting portion in the intersecting lens of end face and side face be provided with least one pair of symmetrically and with the integrally formed driving groove of cutting portion, driving groove includes bottom surface and is arranged on the side of bottom surface both sides, two section end transition integrally formed with driving groove is provided between end face and bottom surface and two sides, two section week portion transition face integrally formed with driving groove is provided between side face and two sides.The rotary cutter have be molded easy, with low cost, long service life, can avoid dismounting collapse scarce.
Description
Technical field
The invention mainly relates to metal cutting process cutter, more particularly to a kind of detachable rotary cutter.
Background technology
In process, rotary cutter only has cutting part to participate in cutting to rotary cutter, and hold assembly is simultaneously not involved in cutting
Cutting, scrapping for whole rotary cutter being caused in order to avoid cutting part is damaged, extending will in the service life of rotary cutter, industry
The cutting part of rotary cutter and hold assembly are independently arranged, wherein cutting part be made using hard alloy, clamping part
Part is made by steel or hard alloy, and cutting part is repeated to be loaded and unloaded on by hold assembly by the connected mode for repeating dismounting
On hold assembly, due to cutting part compact conformation, and as hard alloy toughness is poor, easily collapse during handling and lack to making to cut
Component failure is cut, such rotary cutter handling is difficult.When especially such rotary cutter is applied to hole machined, due to end face, side
Face is designed with cutting edge, smooth in order to ensure the chip discharge for closing machining area, is typically provided space relatively between cutting edge sword
Big chip pocket, the actual strength of cutting part are relatively low, easily cause cutting part and collapse scarce, cause to cut during dismounting cutting part
Cut scrapping for part or even hold assembly.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of shaping easy, with low cost,
Long service life, can avoid dismounting and collapse scarce detachable rotary cutter.
For solving above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of detachable rotary cutter, including cutting part and hold assembly, the cutting part includes that connected as one cuts
Portion and connecting portion is cut, the connecting portion is threadeded with hold assembly, the cutting portion is provided with intersecting end face and side face, institute
State cutting portion in end face and side face intersecting lens be provided with least one pair of symmetrically and with the integrally formed driving groove of cutting portion,
The driving groove includes bottom surface and to be arranged on the side of bottom surface both sides, be provided between the end face and bottom surface and two sides with
The integrally formed two sections of end transition of driving groove, are provided with integrally formed with driving groove two between the side face and two sides
Section week portion's transition face.
Improvement further as technique scheme：
The driving groove is L1 in the height along cutting portion axial direction, and the end transition being connected with side is along cutting portion axial direction
It is highly L2,0.1 L1≤L2≤0.3 L1.
The axial height of the cutting portion is L, 0.2L≤L1≤0.5L.
The driving groove is D1 in the length along cutting portion radial direction, and all portion's transition faces being connected with side are along cutting portion footpath
To length be D2,0.1 D1≤D2≤0.3 D1.
The radius of the cutting portion is r, should meet：0.3r≤D1≤0.5r.
The opening size of the driving groove is more than bed-plate dimension, and the angle between two sides is α, 1 °≤α≤8 °.
It is provided between the bottom surface and two sides and the integrally formed bottom transition face of driving groove.
The bottom transition face is inclined-plane or cambered surface.
Two end transition are respectively inclined-plane and/or cambered surface.
Two week portion transition faces are respectively inclined-plane and/or cambered surface.
Compared with prior art, it is an advantage of the current invention that：
The detachable rotary cutter of the present invention, cutting part are threadeded with hold assembly by connecting portion, form detachable knot
Structure, only need to be extended in symmetrical driving groove using fastening tool and be ordered about cutting part rotation so as to realize by driving groove by torsion
The lossless dismounting of cutting part.The driving groove is integrally formed with cutting portion, it is not necessary to by removing the method for material being designed to
Type driving groove, effectively reduces production difficulty and the processing cost of cutting part, easy to use, with very outstanding cost performance
Advantage.While two sections of end transition and two sections week portion's transition face be integrally formed setting, on the one hand ensure that driving groove and end
The fairing transition of face and side face intersection, be prevented effectively from driving groove produce sharp edge and collapse scarce, so as to lift edge
Structural strength, on the other hand, it is ensured that fastening tool can only be driven with the contacts side surfaces of driving groove both sides, and fastening tool is in dress
When cutting portion is unloaded, with big contact area, big Edge Distance, stress concentration is prevented effectively from, extends making for rotary cutter
Use the life-span.
Description of the drawings
Fig. 1 is the perspective view of the embodiment of the present invention 1.
Fig. 2 is the perspective view of cutting part in the embodiment of the present invention 1.
Fig. 3 is the H-H cross section structure diagram of Fig. 2.
Fig. 4 is the perspective view of cutting part in the embodiment of the present invention 1（End transition, week portion's transition face with
The size relationship of driving groove）.
Fig. 5 is the overlooking the structure diagram of cutting part in the embodiment of the present invention 1.
Fig. 6 is the side structure schematic view of cutting part in the embodiment of the present invention 1.
Fig. 7 is the perspective view of the embodiment of the present invention 2.
The each label of in figure represents：
1st, cutting part；11st, cutting portion；111st, end face；112nd, side face；12nd, connecting portion；2nd, hold assembly；3rd, driving groove；31、
Bottom surface；32nd, side；33rd, end transition；34th, week portion's transition face；35th, bottom transition face.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Embodiment 1：
Fig. 1 to Fig. 6 shows the first embodiment of the detachable rotary cutter of the present invention, and the rotary cutter includes cutting part 1
With hold assembly 2, cutting part 1 includes the cutting portion 11 for connecting as one and connecting portion 12, connecting portion 12 and 2 spiral shell of hold assembly
Line connects, and cutting portion 11 is provided with intersecting end face 111 and side face 112, and cutting portion 11 is intersecting in end face 111 and side face 112
Line be provided with least one pair of symmetrically and with 11 integrally formed driving groove 3 of cutting portion, driving groove 3 includes bottom surface 31 and arranges
In the side 32 of 31 both sides of bottom surface, it is provided between end face 111 and bottom surface 31 and two sides 32 integrally formed with driving groove 3
Two sections of end transition 33, are provided with two section week portion transition face integrally formed with driving groove 3 between side face 112 and two sides 32
34.The rotary cutter of the present invention, cutting part 1 are threadeded with hold assembly 2 by connecting portion 12, form demountable structure,
Only need to be extended using fastening tool and cutting part 1 be ordered about by torsion by driving groove 3 in symmetrical driving groove 3 and rotate so as to realize
The lossless dismounting of cutting part 1.The driving groove 3 is integrally formed with cutting portion 11, it is not necessary to by removing the method for material setting
Meter shaping driving groove 3, effectively reduces production difficulty and the processing cost of cutting part 1, easy to use, with very outstanding
Superiority of effectiveness.While two sections of end transition 33 and two sections week portion's transition face 34 be integrally formed setting, on the one hand ensure that
Driving groove 3 and the fairing transition of end face 111 and 112 intersection of side face, are prevented effectively from driving groove 3 and produce sharp edge and occur
Collapse scarce, so as to lift marginal texture intensity, on the other hand, it is ensured that fastening tool can only be connect with the side 32 of 3 both sides of driving groove
Transmission is touched, fastening tool is prevented effectively from stress collection when cutting portion 11 is loaded and unloaded with big contact area, big Edge Distance
In, extend the service life of rotary cutter.
In the present embodiment, driving groove 3 is L1 in the height along 11 axial direction of cutting portion, the end transition being connected with side 32
33 is L2 in the height along 11 axial direction of cutting portion, and the axial height of cutting portion 11 is L, and driving groove 3 is along 11 radial direction of cutting portion
Length is D1, and all portion's transition faces 34 being connected with side 32 are D2 in the length along 11 radial direction of cutting portion, the half of cutting portion 11
Footpath is r, in order to ensure driving groove 3 and the edge strength on end face 111 and side face 112 and fairing transition, while fastening tool
With larger contact area and contact in 32 central area of side with driving groove 3 when cutting portion 11 is loaded and unloaded, should meet：
0.1 L1≤L2≤0.3 L1,0.2L≤L1≤0.5L, 0.1 D1≤D2≤0.3 D1, should meet：0.3r≤D1≤
0.5r, in the present embodiment：L1=0.3L, L2=0.06L, D1=0.4 r, D2=0.08 r.
In the present embodiment, the opening size of driving groove 3 is more than 31 size of bottom surface, and the angle between two sides 32 is α, 1 °
≤α≤8°.In the present embodiment, α is 4 °.The structure of angle α can effectively reduce the circumference pressure that bears side 32 in cargo handling process
Power.
In the present embodiment, it is provided between bottom surface 31 and two sides 32 and the integrally formed bottom transition face 35 of driving groove 3.
The setting in the bottom transition face 35, is easy to the global formation of driving groove 3.
In the present embodiment, bottom transition face 35 is inclined-plane or cambered surface.Its simple structure, easily shaping.
In the present embodiment, two end transition 33 are respectively inclined-plane and/or cambered surface.Its simple structure, easily shaping.
In the present embodiment, two weeks portion's transition face 34 be respectively inclined-plane and/or cambered surface.Its simple structure, easily shaping.
Embodiment 2：
As shown in fig. 7, second embodiment of the detachable rotary cutter of the present invention, the rotary cutter is substantially the same manner as Example 1,
Differ only in：The present embodiment is applied to Milling Process, and cutting portion 11 is provided with two pairs of driving grooves 3.
Although the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.Any it is familiar with ability
The technical staff in domain, in the case of without departing from technical solution of the present invention scope, using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.Therefore, every
Without departing from the content of technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments,
Equivalent variations and modification, all should fall in the range of technical solution of the present invention protection.
Claims (10)
1. a kind of detachable rotary cutter, including cutting part（1）And hold assembly（2）, the cutting part（1）Including connection
The cutting portion being integrated（11）And connecting portion（12）, the connecting portion（12）With hold assembly（2）Threaded, the cutting portion
（11）It is provided with intersecting end face（111）And side face（112）, it is characterised in that：The cutting portion（11）In end face（111）And week
Face（112）Intersecting lens be provided with least one pair of symmetrically and and cutting portion（11）Integrally formed driving groove（3）, the biography
Dynamic groove（3）Including bottom surface（31）Be arranged on bottom surface（31）The side of both sides（32）, the end face（111）With bottom surface（31）And
Two sides（32）Between be provided with and driving groove（3）Integrally formed two sections of end transition（33）, the side face（112）With two
Individual side（32）Between be provided with and driving groove（3）Integrally formed two sections of weeks portion's transition face（34）.
2. detachable rotary cutter according to claim 1, it is characterised in that：The driving groove（3）Along cutting portion
（11）The height of axial direction is L1, with side（32）The end transition of connection（33）Along cutting portion（11）Axial direction height be
L2,0.1 L1≤L2≤0.3 L1.
3. detachable rotary cutter according to claim 2, it is characterised in that：The cutting portion（11）Axial height be
L, 0.2L≤L1≤0.5L.
4. detachable rotary cutter according to claim 3, it is characterised in that：The driving groove（3）Along cutting portion
（11）The length of radial direction is D1, with side（32）All portion's transition faces of connection（34）Along cutting portion（11）The length of radial direction is
D2,0.1 D1≤D2≤0.3 D1.
5. detachable rotary cutter according to claim 4, it is characterised in that：The cutting portion（11）Radius be r,
Should meet：0.3r≤D1≤0.5r.
6. detachable rotary cutter according to any one of claim 1 to 5, it is characterised in that：The driving groove（3）'s
Opening size is more than bottom surface（31）Size, two sides（32）Between angle be α, 1 °≤α≤8 °.
7. detachable rotary cutter according to any one of claim 1 to 5, it is characterised in that：The bottom surface（31）With
Two sides（32）Between be provided with and driving groove（3）Integrally formed bottom transition face（35）.
8. detachable rotary cutter according to claim 7, it is characterised in that：The bottom transition face（35）For inclined-plane or
Cambered surface.
9. detachable rotary cutter according to any one of claim 1 to 5, it is characterised in that：Two end mistakes
Cross face（33）Respectively inclined-plane and/or cambered surface.
10. detachable rotary cutter according to any one of claim 1 to 5, it is characterised in that：Two week portion mistakes
Cross face（34）Respectively inclined-plane and/or cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938745.1A CN106475620B (en) | 2016-10-25 | 2016-10-25 | Detachable rotary cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938745.1A CN106475620B (en) | 2016-10-25 | 2016-10-25 | Detachable rotary cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106475620A true CN106475620A (en) | 2017-03-08 |
| CN106475620B CN106475620B (en) | 2020-05-05 |
Family
ID=58271464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610938745.1A Active CN106475620B (en) | 2016-10-25 | 2016-10-25 | Detachable rotary cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106475620B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877115A (en) * | 2019-12-11 | 2020-03-13 | 株洲钻石切削刀具股份有限公司 | Drilling tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2520975Y (en) * | 2001-12-17 | 2002-11-20 | 卢毓辉 | Combined milling cutter |
| US20100092259A1 (en) * | 2006-10-13 | 2010-04-15 | Bernhard Borschert | Drill bit for drilling having at least two cutting edges, each with two cutting portions and a non-cutting portion between the two cutting portions |
| US20100322727A1 (en) * | 2009-06-23 | 2010-12-23 | Sandvik Intellectual Property Ab | Drilling tool of the loose top type |
| CN101927371A (en) * | 2009-06-23 | 2010-12-29 | 山特维克知识产权股份有限公司 | The drilling cutters and the loose top that is used for described lead plug cutter that are used for chip removing machining |
| CN104001980A (en) * | 2014-04-30 | 2014-08-27 | 株洲钻石切削刀具股份有限公司 | Detachable rotary cutting tool |
| CN104759664A (en) * | 2015-04-21 | 2015-07-08 | 成都锋宜精密工具制造有限公司 | Self-locking type head-replaceable carbide drill |
-
2016
- 2016-10-25 CN CN201610938745.1A patent/CN106475620B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2520975Y (en) * | 2001-12-17 | 2002-11-20 | 卢毓辉 | Combined milling cutter |
| US20100092259A1 (en) * | 2006-10-13 | 2010-04-15 | Bernhard Borschert | Drill bit for drilling having at least two cutting edges, each with two cutting portions and a non-cutting portion between the two cutting portions |
| US20100322727A1 (en) * | 2009-06-23 | 2010-12-23 | Sandvik Intellectual Property Ab | Drilling tool of the loose top type |
| CN101927371A (en) * | 2009-06-23 | 2010-12-29 | 山特维克知识产权股份有限公司 | The drilling cutters and the loose top that is used for described lead plug cutter that are used for chip removing machining |
| CN104001980A (en) * | 2014-04-30 | 2014-08-27 | 株洲钻石切削刀具股份有限公司 | Detachable rotary cutting tool |
| CN104759664A (en) * | 2015-04-21 | 2015-07-08 | 成都锋宜精密工具制造有限公司 | Self-locking type head-replaceable carbide drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877115A (en) * | 2019-12-11 | 2020-03-13 | 株洲钻石切削刀具股份有限公司 | Drilling tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106475620B (en) | 2020-05-05 |
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