CN104588739B - Rotary machining tool - Google Patents
Rotary machining tool Download PDFInfo
- Publication number
- CN104588739B CN104588739B CN201410841965.3A CN201410841965A CN104588739B CN 104588739 B CN104588739 B CN 104588739B CN 201410841965 A CN201410841965 A CN 201410841965A CN 104588739 B CN104588739 B CN 104588739B
- Authority
- CN
- China
- Prior art keywords
- face
- machining tool
- rotary machining
- cutting
- sloped position
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a rotary machining tool. The rotary machining tool comprises a clamping component and a cutting component, wherein the clamping component comprises a handle part and an elastic clamping part; the cutting part is arranged on the elastic clamping part; the cutting part comprises a cutting head part and a connection part; at least two cutting edges and at least two inclined positioning faces are arranged at the cutting head part; the inclined positioning faces are inclined towards the axis of the rotary machining tool along a cutting feeding direction of the rotary machining tool; an axial positioning face is formed by a transition face between the cutting head part and the connection part; a dovetail groove is formed in the elastic clamping part, and comprises a torque action face for supporting the inclined positioning faces and an axial action face for supporting the axial positioning face; an installation groove is formed in the bottom face of the dovetail groove; the connection part is arranged inside the installation groove. The rotary machining tool provided by the invention has the advantages of simple structure, stability in connection and good anti-impact property.
Description
Technical field
The present invention relates to metal cutting process field, more particularly, to a kind of rotary machining tool.
Background technology
In drilling processing, in order to extend the service life of blades of cutting tools, generally closed using more valuable hard
As cutter material, because such material has, hardness is high, wearability is good, and processing is extremely difficult for gold or similar material,
This makes drilling cutters material cost and processing cost all higher, the drilling cutters commonly used at present be typically all by cutting part and
Hold assembly assembles, and wherein cutting part is made up of the hard alloy that hardness is big, anti-wear performance is strong or similar material, and
Hold assembly is then made up of the larger material of elasticity, can be individually replaced cutting part, thus reducing after cutting part is worn
With material and processing cost.
The Chinese patent literature of Publication No. CN1585682A discloses a kind of drilling machining cutter, including sheath body and
Cutting part two parts, they are respectively provided with a dovetail shape structure, and this two-part swallowtail-shaped structure can cooperate, and lead to
Cross sheath body elastic protrusion skew and produce deformation, to cutting part formed clamping, by perpendicular to axis basal plane and
The cooperation in dovetail shape face, makes two parts stably connect.This instrument passes through the connecting piece effect in a slit of sheath body
Face is carried out transmitting torque and so that elastic protrusion is shifted, and there is problems with during actual cut：First, due to elastic protrusion
Radial direction area is larger, and when causing handling cutting tip, extracting tool stress is larger, and extracting tool lifting surface area is less, dismounting
Instrument and sheath body are easy to impression and damage, thus reducing the service life of instrument, and in handling cutting part
When, the subtended angle that elastic protrusion can reach is too small, and cutting part, along the dovetail slot sliding of sheath body, can not be kept away therebetween
Exempt to rub, and sheath body is typically made using the relatively poor material of anti-wear performance, often makes sheath after loading and unloading several times
Dovetail slot serious wear in main body, sheath body will be unable in the absence of external forces cutting part be formed reliably
Support, cause sheath body to lose efficacy；2nd, sheath body and cutting part pass through the swallowtail-shaped structure positioning being parallel to each other, when cutting
When cutting part and being subject to parallel with swallowtail-shaped structure power, easily cause cutting part and come off；3rd, pass through swallowtail-shaped structure center
Circular groove is felt relieved with sheath body to cutting part, and this circular groove diameter is limited by swallowtail-shaped structure, at most can only reach
Arrive equal with the width of swallowtail-shaped structure bottom, the centering effect that therefore this circular groove can reach is limited.
Content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides that a kind of structure is simple, stable connection
And the good rotary machining tool of shock resistance.
For solving above-mentioned technical problem, the present invention employs the following technical solutions：
A kind of rotary machining tool, including hold assembly and cutting part, described hold assembly includes shank and elastic clip
Hold portion, described cutting part is installed in described resilient clamp portion, described cutting part includes cutting head and connecting portion, described
Cutting head is provided with least two cutting edges and at least two sloped position faces, and described sloped position face is along described rotation processing knife
The cutting feed direction of tool tilts to the axis of described rotary machining tool, and described cutting head is formed with the transition face of connecting portion
Axial locating surface, described resilient clamp portion is provided with dovetail groove, and described dovetail groove includes the torsion for supporting described sloped position face
Square acting surface and the axial action face for supporting described axial locating surface, the bottom surface of described dovetail groove offers mounting groove,
Described connecting portion is installed in described mounting groove.
Improvement further as technique scheme：
Described sloped position face and axial locating surface are plane.
Described cutting head includes two sloped position faces, and two described sloped position faces are with regard to described rotary machining tool
Axis centre symmetrical, described moment of torsion acting surface is correspondingly arranged with two described sloped position faces.
Described connecting portion includes at least one external cylindrical surface and at least one axial empty avoiding face, is provided with circle in described mounting groove
Post empty avoiding face and the inner cylinder face that interference fit can be formed with described external cylindrical surface.
Described cutting head is provided with and described sloped position face corresponding radial direction empty avoiding face, is provided with and institute in described dovetail groove
State sloped position face corresponding positioning empty avoiding face.
The axial angle of two described moment of torsion acting surfaces is α, and the axial angle in two described sloped position faces is β, and 5 °
≤ α≤60 °, 5 °≤β≤60 °, 0 °≤alpha-beta≤3 °.
Compared with prior art, it is an advantage of the current invention that：
（1）The rotary machining tool of the present invention, by the axial action of the axial locating surface on cutting part and dovetail groove
Face cooperates the axially position realizing cutting part on hold assembly, passes through moment of torsion acting surface and sloped position face simultaneously
It is circumferentially positioned on hold assembly that the circumferential moment of torsion of cooperation transmission realizes cutting part, and because sloped position face is along rotation processing
The cutting feed direction of cutter tilts to the axis of rotary machining tool, and during machining, the circumference that cutting part is subject to acts on
Power is bigger, and the cooperation between moment of torsion acting surface and sloped position face is tightr, and the circumferential cutting force that is, cutting part bears is bigger,
The connection of cutting part and hold assembly is got over fastening, is stablized, and makes cutting part have good shock resistance, the present invention passes through
Simple structure can be achieved with the reliable and stable positioning on hold assembly of cutting part, and improves the anti-of rotary machining tool
Impact property.
（2）The rotary machining tool of the present invention, connecting portion includes at least one external cylindrical surface and at least one axial empty avoiding
Face, the inner cylinder face being provided with cylinder empty avoiding face in mounting groove and interference fit being formed with external cylindrical surface, when cutting part is installed,
First will be corresponding with inner cylinder face for corresponding, axial with cylinder empty avoiding face for external cylindrical surface empty avoiding face, and vertically by cutting part
In connecting portion insertion mounting groove, then cutting part is applied with an axial force and cuts rotation direction with rotary machining tool
Contrary circumferential active force, makes external cylindrical surface and inner cylinder face form interference fit it is ensured that cutting part and hold assembly are coaxial,
Ensure assembly precision, using instrument, the active force contrary with when installing is applied to cutting part during dismounting, dismounting is all very
Convenient.
Brief description
Fig. 1 is the three-dimensional structure diagram of rotary machining tool of the present invention.
Fig. 2 is the sectional perspective structure chart of the hold assembly of rotary machining tool of the present invention.
Fig. 3 is the front view of the hold assembly of rotary machining tool of the present invention.
Fig. 4 is the three-dimensional structure diagram of the cutting part of rotary machining tool of the present invention.
Fig. 5 is the front view of the cutting part of rotary machining tool of the present invention.
Fig. 6 is the side view of the cutting part of rotary machining tool of the present invention.
Fig. 7 be the hold assembly of rotary machining tool of the present invention and cutting part unassembled when schematic diagram.
Fig. 8 is the schematic diagram in the hold assembly and cutting part assembling process of rotary machining tool of the present invention.
Fig. 9 is the schematic diagram that the hold assembly of rotary machining tool of the present invention and cutting part assembling complete.
The each label of in figure represents：
1st, hold assembly；11st, shank；12nd, resilient clamp portion；13rd, dovetail groove；131st, moment of torsion acting surface；132nd, axially make
Use face；133rd, position empty avoiding face；14th, mounting groove；141st, inner cylinder face；142nd, cylinder empty avoiding face；2nd, cutting part；21st, cut
Head；211st, cutting edge；212nd, sloped position face；213rd, radial direction empty avoiding face；22nd, connecting portion；221st, external cylindrical surface；222nd, axially
Empty avoiding face；23rd, axial locating surface.
Specific embodiment
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
Fig. 1 to 9 shows a kind of embodiment of rotary machining tool of the present invention, including hold assembly 1 and cutting part 2,
Hold assembly 1 includes shank 11 and resilient clamp portion 12, and cutting part 2 is installed in resilient clamp portion 12, and cutting part 2 includes
Cutting head 21 and connecting portion 22, cutting head 21 is provided with least two cutting edges 211 and at least two sloped position faces 212,
Sloped position face 212 tilts along the cutting feed direction of rotary machining tool to the axis of rotary machining tool, cutting head 21
Form axial locating surface 23 with the transition face of connecting portion 22, resilient clamp portion 12 is provided with dovetail groove 13, dovetail groove 13 include for
Support the moment of torsion acting surface 131 in sloped position face 212 and the axial action face 132 for supporting axial locating surface 23, dovetail groove
Mounting groove 14 is offered on 13 bottom surface, connecting portion 22 is installed in mounting groove 14, by the axial locating surface on cutting part 2
23 are cooperated the axially position realizing cutting part 2 on hold assembly 1 with the axial action face 132 of dovetail groove 13, simultaneously
Cutting part 2 is realized in hold assembly 1 by the circumferential moment of torsion of cooperation transmission in moment of torsion acting surface 131 and sloped position face 212
On circumferentially positioned, and because sloped position face 212 along rotary machining tool axle from cutting feed direction to rotary machining tool
Line tilts, and during machining, the circumferential active force that cutting part 2 is subject to is bigger, moment of torsion acting surface 131 and sloped position face 212
Between cooperation tightr, the circumferential cutting force that is, cutting part 2 bears is bigger, and the connection of cutting part 2 and hold assembly 1 is got over
Fasten, stablize, make cutting part 2 have good shock resistance.
In the present embodiment, sloped position face 212 and axial locating surface 23 are plane, the moment of torsion acting surface of dovetail groove 13
131 and axial action face 132 all can be correspondingly arranged as plane, be easy to cutting part 2 and the processing of dovetail groove 13.
In the present embodiment, cutting head 21 includes two sloped position faces 212, and two sloped position faces 212 are with regard to rotation
The axis centre of process tool is symmetrical, and moment of torsion acting surface 131 is correspondingly arranged with two sloped position faces 212.Except in the present embodiment
Mode outside, sloped position face 212 may be arranged as more than three, and three sloped position faces 212 are located along cutting head 21
The face of cylinder is uniformly distributed.
In the present embodiment, connecting portion 22 includes at least one external cylindrical surface 221 and at least one axial empty avoiding face 222, peace
The inner cylinder face 141 being provided with cylinder empty avoiding face 142 in tankage 14 and can forming interference fit with external cylindrical surface 221, such as Fig. 7 is to figure
Shown in 9, when installing cutting part 2, first by corresponding, axial with cylinder empty avoiding face 142 for external cylindrical surface 221 empty avoiding face 222 and inner circle
Cylinder 141 is corresponding, and inserts the connecting portion 22 of cutting part 2 in mounting groove 14 vertically, then cutting part 2 is applied
One axial force and the circumferential active force contrary with rotary machining tool cutting rotation direction, make external cylindrical surface 221 and inner circle
Cylinder 141 forms interference fit, and now, sloped position face 212 and moment of torsion acting surface 131 also should be at the state of being engaged, outward
The interference fit of the face of cylinder 221 and inner cylinder face 141 not only ensure cutting part 2 and hold assembly 1 coaxial it is ensured that assembling essence
Degree, and can effectively prevent cutting part 2 from occurring to loosen.Using instrument, cutting part 2 is applied contrary with when installing during dismounting
Active force, dismounting is all very convenient.In assembling process, external cylindrical surface 221 initially forms interference with inner cylinder face 141 and joins
During conjunction, operator would know that installation is near completion, in unloading process, when external cylindrical surface 221 and inner cylinder face 141 are kept completely separate,
Operator would know that dismounting is near completion.
In the present embodiment, cutting head 21 is provided with radial direction empty avoiding face 213 corresponding with sloped position face 212, dovetail groove 13
Inside it is provided with positioning empty avoiding face 133 corresponding with sloped position face 212.
The angle of two moment of torsion acting surfaces 131 is α, and the angle in two sloped position faces 212 is β, in order that cutting part 2
Handling all convenient laborsaving, and ensure that sloped position face 212 and moment of torsion acting surface 131 can be fully contacted and coordinate and transmit week
To moment of torsion, need to meet：5 °≤α≤60 °, 5 °≤β≤60 °, 0 °≤alpha-beta≤3 °, in the present embodiment, α is equal to 30 °, and β is equal to
30°.
Although the present invention is disclosed above with preferred embodiment, but it 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, can be utilized the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible variations and modification, or the Equivalent embodiments 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 (5)
1. a kind of rotary machining tool, including hold assembly（1）And cutting part（2）, described hold assembly（1）Including shank
（11）And resilient clamp portion（12）, described cutting part（2）It is installed in described resilient clamp portion（12）On, described cutting part
（2）Including cutting head（21）And connecting portion（22）It is characterised in that：Described cutting head（21）It is provided with least two cutting edges
（211）With at least two sloped position faces（212）, described sloped position face（212）Along being cut into of described rotary machining tool
Tilt to the axis of described rotary machining tool to direction, described cutting head（21）With connecting portion（22）Transition face formed axle
To locating surface（23）, described resilient clamp portion（12）It is provided with dovetail groove（13）, described dovetail groove（13）Including described for supporting
Sloped position face（212）Moment of torsion acting surface（131）With for supporting described axial locating surface（23）Axial action face
（132）, described dovetail groove（13）Bottom surface on offer mounting groove（14）, described connecting portion（22）It is installed in described mounting groove
（14）Interior, described connecting portion（22）Including at least one external cylindrical surface（221）With at least one axial empty avoiding face（222）, described
Mounting groove（14）Inside it is provided with cylinder empty avoiding face（142）With can be with described external cylindrical surface（221）Form the inner cylinder face of interference fit
（141）.
2. rotary machining tool according to claim 1 it is characterised in that：Described sloped position face（212）Fixed with axial direction
Plane（23）It is plane.
3. rotary machining tool according to claim 1 it is characterised in that：Described cutting head（21）Tilt including two
Locating surface（212）, two described sloped position faces（212）Axis centre with regard to described rotary machining tool is symmetrical, described torsion
Square acting surface（131）With two described sloped position faces（212）It is correspondingly arranged.
4. rotary machining tool according to any one of claim 1 to 3 it is characterised in that：Described cutting head（21）
It is provided with and described sloped position face（212）Corresponding radial direction empty avoiding face（213）, described dovetail groove（13）Inside it is provided with and described inclination
Locating surface（212）Corresponding positioning empty avoiding face（133）.
5. rotary machining tool according to claim 3 it is characterised in that：Two described moment of torsion acting surfaces（131）Axle
It is α to angle, two described sloped position faces（212）Axial angle be β, and 5 °≤α≤60 °, 5 °≤β≤60 °, 0 °≤
α-β ≤ 3°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410841965.3A CN104588739B (en) | 2014-12-30 | 2014-12-30 | Rotary machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410841965.3A CN104588739B (en) | 2014-12-30 | 2014-12-30 | Rotary machining tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104588739A CN104588739A (en) | 2015-05-06 |
| CN104588739B true CN104588739B (en) | 2017-02-22 |
Family
ID=53114984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410841965.3A Active CN104588739B (en) | 2014-12-30 | 2014-12-30 | Rotary machining tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104588739B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013205889B3 (en) | 2013-04-03 | 2014-05-28 | Kennametal Inc. | Coupling structure e.g. cutting head for rotary tool e.g. drilling tool, has coupling pin with clamping faces and stop surfaces that are arranged in different dispensing areas |
| DE102013220884B4 (en) | 2013-10-15 | 2022-02-17 | Kennametal Inc. | Modular carrier tool and tool head |
| US10071430B2 (en) | 2015-10-07 | 2018-09-11 | Kennametal Inc. | Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head |
| USD798921S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for modular drill |
| US9937567B2 (en) | 2015-10-07 | 2018-04-10 | Kennametal Inc. | Modular drill |
| USD798922S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for rotary drill |
| CN105537654B (en) * | 2015-12-30 | 2017-09-29 | 株洲钻石切削刀具股份有限公司 | A kind of drilling machining cutter |
| DE102017205166B4 (en) | 2017-03-27 | 2021-12-09 | Kennametal Inc. | Modular rotary tool and modular tool system |
| DE102017212054B4 (en) | 2017-07-13 | 2019-02-21 | Kennametal Inc. | Method for producing a cutting head and cutting head |
| US10799958B2 (en) | 2017-08-21 | 2020-10-13 | Kennametal Inc. | Modular rotary cutting tool |
| CN112077370A (en) | 2019-06-13 | 2020-12-15 | 肯纳金属印度有限公司 | Indexable drill insert |
| CN112658340B (en) * | 2020-12-17 | 2022-08-16 | 乐清大勇新工具有限公司 | Drill bit and machining process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100639527B1 (en) * | 1999-08-03 | 2006-10-30 | 케나메탈 아이엔씨. | Drill bit having a replaceable cutting head |
| DE10207257B4 (en) * | 2002-02-21 | 2021-02-18 | Kennametal Inc. | Rotary cutting tool with exchangeable cutting insert |
| IL181295A (en) * | 2007-02-12 | 2011-07-31 | Iscar Ltd | Tool with releasably mounted self-clamping cutting head |
| WO2008072840A2 (en) * | 2007-11-05 | 2008-06-19 | Taegutec. Ltd. | Rotary cutting tool |
| DE112009002001B4 (en) * | 2009-12-08 | 2019-09-19 | Osg Corporation | Disposable rotary tool |
-
2014
- 2014-12-30 CN CN201410841965.3A patent/CN104588739B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104588739A (en) | 2015-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104588739B (en) | Rotary machining tool | |
| CN105473260B (en) | Hard metal cutting tool retainer blade and the cutting tool with the retainer blade | |
| EP3038777B1 (en) | Detachable cutting tool segment with resilient clamping and cutting tool therefor | |
| US20040253070A1 (en) | Cutting tool configured for improved engagement with a tool holder | |
| JP2016074061A (en) | Radial end mill | |
| CN105269058A (en) | Cutting tool provided with circular blades | |
| KR20130072242A (en) | Unequal helix angle end mill | |
| CN115502456A (en) | Cutting tool and cutting insert for a chip removing tool | |
| CN110494242B (en) | Indexable cutting tool | |
| CN104440149A (en) | Screw head wedge clamp assembly for cutting tool | |
| KR200471650Y1 (en) | Rotary cutter for chamfering | |
| CN215392710U (en) | Slotting milling cutter | |
| CN212384683U (en) | High-precision PCD corn milling cutter | |
| CN110799294B (en) | Rotary cutting insert and tool with axial locking member | |
| CN203791647U (en) | Boring cutter for machining inner bore of automobile engine | |
| US9120243B2 (en) | Tool insert | |
| CN203401132U (en) | Nose-replaceable cylindrical milling cutter | |
| CN203401117U (en) | Twist drill with removable drill point | |
| CN206335181U (en) | Compound counterbore knife | |
| CN112916929A (en) | High-precision PCD corn milling cutter | |
| CN220050181U (en) | Six-blade high-hardness die milling cutter | |
| CN205996315U (en) | Compound ream reamer | |
| CN217393789U (en) | Handle of a knife of deep hole reducing boring cutter | |
| CN210147083U (en) | High-performance saw blade milling cutter | |
| JP2014166669A (en) | Form rotary cutting tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |