CN104338974A - Rotating cutter capable of being repeatedly loaded and unloaded - Google Patents
Rotating cutter capable of being repeatedly loaded and unloaded Download PDFInfo
- Publication number
- CN104338974A CN104338974A CN201410580567.0A CN201410580567A CN104338974A CN 104338974 A CN104338974 A CN 104338974A CN 201410580567 A CN201410580567 A CN 201410580567A CN 104338974 A CN104338974 A CN 104338974A
- Authority
- CN
- China
- Prior art keywords
- clamping
- recessed
- convex tooth
- inner ring
- load
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- 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
- B23C5/20—Milling-cutters characterised by physical features other than shape with removable cutter bits or teeth or cutting inserts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a rotating cutter capable of being repeatedly loaded and unloaded. The rotating cutter comprises a clamping component and a cutting component installed on the clamping component, wherein the clamping component comprises a clamping handle part and a clamping head part; the cutting component comprises a cutting head part and a cutting tail part; the cutting tail part is provided with a clamping bulge; external threads are formed in the clamping bulge; a clamping recess is formed in the end surface of the clamping head part; internal threads matched with the external threads in the clamping bulge are formed in the clamping recess; the external threads comprise internal ring convex threads and external ring convex threads with different thread angles; the internal ring convex threads are cooperated with the internal threads of the clamping recess in a contact manner; the external ring convex threads are not in contact with the internal threads of the clamping recess. The rotating cutter has the advantages of high impact resistance, long service life, good stability and the like.
Description
Technical field
The present invention relates to cutting tool, particularly relate to a kind of rotary cutter repeating to load and unload.
Background technology
Rotary cutter only has cutting tip to participate in cutting in process, clamping shank does not participate in cutting, scrapping of whole rotary cutter is caused in order to avoid cutting tip damages, extend the service life of rotary cutter, in industry, the cutting portion of rotary cutter and clamping shank are independently arranged, cutting portion, clamping shank realizes cutting tip repeating on clamping shank by connected modes such as regular screw threads and loads and unloads, but along with manufacturing fast development, the draw ratio of cutter constantly increases, therefore higher intensity and rigid requirements are proposed to the structural strength of cutter, in order to the performance making such can repeat rotary cutter and the integral cutter of loading and unloading is close, cutter can select carbide alloy or and the material close with Cemented Carbide Properties make, but regular screw threads are single tooth form screw thread, due to the existence of foozle during handling, contact is substantially in the edge of tooth, and clamp shank, cutting portion hard is high, fragility is large, it is stressed in working angles that easily to make coupling part collapse scarce, significantly reduce service life.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides a kind of strong shock resistance, long service life and the rotary cutter of the repeated handling of good stability.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of rotary cutter repeating to load and unload, comprise hold assembly and be arranged on the cutting part on described hold assembly, described hold assembly comprises clamping shank and clamping head, described cutting part comprises cutting head and cuts afterbody, it is protruding that described cutting afterbody is provided with clamping, described clamping projection is provided with external screw thread, the end face of described clamping head offers clamping recessed, described clamping is recessed is provided with the internal thread coordinated with the external screw thread in described clamping projection, described external screw thread comprises the convex tooth of the convex tooth of the not identical inner ring of thread form angle and outer ring, the convex tooth of the described inner ring internal thread recessed with described clamping contacts and coordinates, the convex tooth in the described outer ring internal thread recessed with described clamping does not contact.
Further improvement as technique scheme:
The thread form angle of the convex tooth of described inner ring is α, and the thread form angle of the convex tooth in described outer ring is β, and 10 °≤α≤120 °, 10 °≤β≤120 °, 10 °≤β-α≤40 °.
Described internal thread comprises the recessed tooth of the recessed tooth of the not identical inner ring of thread form angle and outer ring.
The convex tooth of described inner ring contacts with the recessed tooth of described inner ring and coordinates, and the convex tooth in described outer ring does not contact with the recessed tooth of described inner ring.
The convex tooth of described inner ring does not contact with the recessed tooth in described outer ring.
Externally threaded external diameter in described clamping projection is D, and pitch is P, and 0.15D≤P≤0.4D.
The radial depth of the convex tooth of described inner ring is L1, and the radial depth of the convex tooth in described outer ring is L2, and 0.02D≤L1≤0.15D, 0.003D≤L2≤0.01D.
The protruding taper platform comprised between described external screw thread and cutting head of described clamping, the diameter of described taper platform near described externally threaded one end is less than the diameter of the one end near described cutting head, the recessed tapered recess comprised away from described clamping shank of described clamping, described tapered recess contacts cooperation with taper platform.
Be provided with step surface between described cutting head and cutting afterbody, the end face of described clamping head is conflicted with described step surface and is coordinated.
Described external screw thread and internal thread are multiple thread.
The outer peripheral face of described cutting head is provided with the first moment of torsion face for loading and unloading described cutting part and the second moment of torsion face.
Compared with prior art, the invention has the advantages that:
The rotary cutter repeating to load and unload of the present invention comprises hold assembly and is arranged on the cutting part on hold assembly, hold assembly comprises clamping shank and clamping head, cutting part comprises cutting head and cuts afterbody, cut afterbody and be provided with clamping projection, clamping projection is provided with external screw thread, the end face of clamping head offers clamping recessed, clamp and be recessedly provided with the internal thread coordinated with the external screw thread clamped in projection, external screw thread comprises the convex tooth of the convex tooth of the not identical inner ring of thread form angle and outer ring, the convex tooth of inner ring contacts with the recessed internal thread of clamping and coordinates, the convex tooth in outer ring does not contact with the recessed internal thread of clamping, can effectively avoid the cooperation of cutting afterbody and clamping head to contact occurring in clamping on the convex tooth in outer ring in projection and thread edge, and to be contacted with the recessed internal thread of clamping by the convex tooth of inner ring and coordinate, the impact resistance that effectively can improve cutting part can avoid again collapsing of thread edge scarce, extend the service life that can repeat the rotary cutter loaded and unloaded, simultaneously in cargo handling process repeatedly, even if the convex tooth in outer ring has certain wearing and tearing, but because the convex tooth in outer ring is to the protective effect of the convex tooth of inner ring, the wearing and tearing of the convex tooth of inner ring can be avoided, improve the positioning precision of cutting part on hold assembly, thus ensure that the stability that hold assembly is connected with cutting part, prevent from cutter from adding in high-speed cutting beat man-hour and damage.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram that the present invention can repeat the rotary cutter loaded and unloaded.
Fig. 2 is the front view that the present invention can repeat the rotary cutter loaded and unloaded.
Fig. 3 is the A-A view of Fig. 2.
Fig. 4 is the enlarged drawing at B place in Fig. 3.
Fig. 5 is the front view of hold assembly of the present invention.
Fig. 6 is the C-C view of Fig. 5.
Fig. 7 is the three-dimensional structure diagram of cutting part of the present invention.
Fig. 8 is the front view of cutting part of the present invention.
Fig. 9 is the E-E view of Fig. 8 of the present invention.
In figure, each label represents:
1, hold assembly; 11, shank is clamped; 12, head is clamped; 121, clamp recessed; 1211, the recessed tooth of inner ring; 1212, the recessed tooth in outer ring; 122, tapered recess; 2, cutting part; 21, cutting head; 211, the first moment of torsion face; 212, the second moment of torsion face; 22, afterbody is cut; 221, clamping is protruding; 2211, the convex tooth of inner ring; 2212, the convex tooth in outer ring; 222, taper platform; 24, step surface.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
Fig. 1 to Fig. 9 shows a kind of embodiment that the present invention can repeat the rotary cutter loaded and unloaded, the cutting part 2 that this rotary cutter that can repeat to load and unload comprises hold assembly 1 and is arranged on hold assembly 1, hold assembly 1 comprises clamping shank 11 and clamping head 12, cutting part 2 comprises cutting head 21 and cuts afterbody 22, cut afterbody 22 and be provided with clamping protruding 221, clamping protruding 221 is provided with external screw thread, the end face of clamping head 12 offers clamping recessed 121, clamp recessed 121 and be provided with the internal thread coordinated with the external screw thread clamped on protruding 221, external screw thread comprises the convex tooth 2212 of the convex tooth of the not identical inner ring of thread form angle 2211 and outer ring, the convex tooth of inner ring 2211 contacts with the internal thread of clamping recessed 121 and coordinates, the convex tooth in outer ring 2212 does not contact with the internal thread of clamping recessed 121, can effectively avoid cut afterbody 22 and clamping head 12 cooperation contact occur in clamp projection 221 on the convex tooth 2212 in outer ring i.e. thread edge on, and contacted coordinated by the internal thread of the convex tooth of inner ring 2211 with clamping recessed 121, the impact resistance that effectively can improve cutting part 2 can avoid again collapsing of thread edge scarce, extend the service life that can repeat the rotary cutter loaded and unloaded, simultaneously in cargo handling process repeatedly, even if the convex tooth in outer ring 2212 has certain wearing and tearing, but because of the protective effect of the convex tooth 2211 of the convex tooth in outer ring 2212 pairs of inner rings, the wearing and tearing of the convex tooth 2211 of inner ring can be avoided, and the connection of cutting part 2 and cutting part 2 contacts cooperation by the internal thread of the convex tooth of inner ring 2211 and clamping recessed 121 and completes, improve the positioning precision of cutting part 2 on hold assembly 1, thus ensure that the stability that hold assembly 1 is connected with cutting part 2, prevent from cutter from adding in high-speed cutting beat man-hour and damage.
In order to improve rotary cutter bonding strength, the reduction manufacture difficulty that can repeat to load and unload, the thread form angle of the convex tooth 2211 of inner ring is α, the thread form angle of the convex tooth 2212 in outer ring is β, and 10 °≤α≤120 °, 10 °≤β≤120 °, 10 °≤β-α≤40 °, in the present embodiment, α=55 °, β=80 °, except the mode in the present embodiment, the convex tooth in outer ring 2212 can also be the chamfering formed in the outside of the convex tooth 2211 of inner ring.
In the present embodiment, the internal thread clamped on recessed 121 comprises the recessed tooth 1212 of the recessed tooth of inner ring 1211 and outer ring, the convex tooth of inner ring 2211 contacts with the recessed tooth 1211 of inner ring and coordinates, the convex tooth in outer ring 2212 does not contact with the recessed tooth 1211 of inner ring, the convex tooth of inner ring 2211 does not contact with the recessed tooth 1212 in outer ring, ensure that internal thread and externally threaded thread edge all do not need to carry out contacting cooperation, avoid collapsing scarce, the convex tooth of inner ring 2211 and the recessed tooth 1211 of inner ring all can not be worn simultaneously, ensure the stability that hold assembly 1 is connected with cutting part 2.
The rotary cutter that conveniently can repeat to load and unload is installed, and the externally threaded external diameter in clamping protruding 221 is D, and pitch is P, and 0.15D≤P≤0.4D, in the present embodiment, P=0.3D.
When inner ring recessed tooth 1211 bight of the hold assembly 1 that can repeat the rotary cutter loaded and unloaded does not have complete back chipping, in order to ensure that the recessed tooth of inner ring 1211 of the clamping of hold assembly 1 recessed 121 contacts well with the convex tooth 2211 of the inner ring of cutting part 2, the radial depth of the convex tooth 2212 in outer ring is L2, 0.003D≤L2≤0.01D, in the present embodiment, L2=0.006D, further, in order to be supplied to chucking power enough in cutting part 2 and suppress the cutting vibration of cutting part 2, the radial depth of the convex tooth 2211 of inner ring is L1, and 0.02D≤L1≤0.15D, in the present embodiment, L1=0.07D.
In the present embodiment, clamping protruding 221 comprises the taper platform 222 between external screw thread and cutting head 21, the diameter of taper platform 222 near externally threaded one end is less than the diameter of the one end near cutting head 21, clamp recessed 121 comprise away from clamping shank 11 tapered recess 122, tapered recess 122 contacts cooperation with taper platform 222, step surface 24 is provided with between cutting head 21 and cutting afterbody 22, the end face of clamping head 12 is conflicted with step surface 24 and is coordinated, contact with taper platform 222 end face coordinating and clamp head 12 by tapered recess 122 to coordinate with the conflict of step surface 24, further raising can repeat impact resistance and the stability of the rotary cutter loaded and unloaded.
In the present embodiment, external screw thread and internal thread are multiple thread, improve hold assembly 1 and the bonding strength of cutting part 2.
In the present embodiment, the outer peripheral face of cutting head 21 is provided with the first moment of torsion face 211 and the second moment of torsion face 212 for loading and unloading cutting part 2, handling instrument acts on the first moment of torsion face 211 and the second moment of torsion face 212, facilitates the handling of cutting part 2 on hold assembly 1.
In the present embodiment, external screw thread on internal thread on hold assembly 1 and cutting part 2 is all linear pattern thread form, and both sides angle of thread is equal, the present invention is not limited only to this, different with actual condition according to technological requirement, also thread form the shapes such as arc can be designed, also both sides thread form difformity can be provided with into simultaneously.
Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from 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 drop in the scope of technical solution of the present invention protection.
Claims (11)
1. the rotary cutter that can repeat to load and unload, comprise hold assembly (1) and be arranged on the cutting part (2) on described hold assembly (1), described hold assembly (1) comprises clamping shank (11) and clamping head (12), described cutting part (2) comprises cutting head (21) and cuts afterbody (22), described cutting afterbody (22) is provided with clamping protruding (221), described clamping protruding (221) is provided with external screw thread, the end face of described clamping head (12) offers clamping recessed (121), described clamping recessed (121) is provided with and the described internal thread clamping the external screw thread on protruding (221) and coordinate, it is characterized in that: described external screw thread comprises the convex tooth of the not identical inner ring of thread form angle (2211) and outer ring convex tooth (2212), the internal thread of the convex tooth of described inner ring (2211) recessed with described clamping (121) contacts and coordinates, the internal thread of the convex tooth in described outer ring (2212) recessed with described clamping (121) does not contact.
2. the rotary cutter repeating to load and unload according to claim 1, it is characterized in that: the thread form angle of the convex tooth of described inner ring (2211) is α, the thread form angle of the convex tooth in described outer ring (2212) is β, and 10 °≤α≤120 °, 10 °≤β≤120 °, 10 °≤β-α≤40 °.
3. the rotary cutter repeating to load and unload according to claim 1, is characterized in that: described internal thread comprises the recessed tooth of the not identical inner ring of thread form angle (1211) and outer ring recessed tooth (1212).
4. the rotary cutter repeating to load and unload according to claim 3, is characterized in that: the convex tooth of described inner ring (2211) contacts with the recessed tooth of described inner ring (1211) and coordinates, and the convex tooth in described outer ring (2212) does not contact with the recessed tooth of described inner ring (1211).
5. the rotary cutter repeating to load and unload according to claim 4, is characterized in that: the convex tooth of described inner ring (2211) does not contact with the recessed tooth in described outer ring (1212).
6. the rotary cutter repeating to load and unload according to any one of claim 1 to 5, is characterized in that: the externally threaded external diameter in described clamping protruding (221) is D, and pitch is P, and 0.15D≤P≤0.4D.
7. the rotary cutter repeating to load and unload according to claim 6, it is characterized in that: the radial depth of the convex tooth of described inner ring (2211) is L1, the radial depth of the convex tooth in described outer ring (2212) is L2, and 0.02D≤L1≤0.15D, 0.003D≤L2≤0.01D.
8. the rotary cutter repeating to load and unload according to any one of claim 1 to 5, it is characterized in that: described clamping protruding (221) comprises the taper platform (222) be positioned between described external screw thread and cutting head (21), the diameter of described taper platform (222) near described externally threaded one end is less than the diameter of the one end near described cutting head (21), described clamping recessed (121) comprises the tapered recess (122) away from described clamping shank (11), and described tapered recess (122) contacts cooperation with taper platform (222).
9. the rotary cutter repeating to load and unload according to any one of claim 1 to 5, it is characterized in that: be provided with step surface (24) between described cutting head (21) and cutting afterbody (22), the end face of described clamping head (12) is conflicted with described step surface (24) and coordinated.
10. the rotary cutter repeating to load and unload according to any one of claim 1 to 5, is characterized in that: described external screw thread and internal thread are multiple thread.
11. rotary cutters repeating to load and unload according to any one of claim 1 to 5, is characterized in that: the outer peripheral face of described cutting head (21) is provided with the first moment of torsion face (211) for loading and unloading described cutting part (2) and the second moment of torsion face (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580567.0A CN104338974B (en) | 2014-10-27 | 2014-10-27 | A kind of rotary cutter of repeatable handling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410580567.0A CN104338974B (en) | 2014-10-27 | 2014-10-27 | A kind of rotary cutter of repeatable handling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104338974A true CN104338974A (en) | 2015-02-11 |
| CN104338974B CN104338974B (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410580567.0A Active CN104338974B (en) | 2014-10-27 | 2014-10-27 | A kind of rotary cutter of repeatable handling |
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| CN (1) | CN104338974B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855576A (en) * | 2016-05-25 | 2016-08-17 | 株洲钻石切削刀具股份有限公司 | Rotary cutter having clamping connector changing function and cutter system |
| CN105880706A (en) * | 2016-05-25 | 2016-08-24 | 株洲钻石切削刀具股份有限公司 | Rotating cutter with clamping port switching function and cutter system |
| CN109262026A (en) * | 2018-11-02 | 2019-01-25 | 株洲钻石切削刀具股份有限公司 | A kind of accurate drilling machining cutter of axially position |
| CN110899808A (en) * | 2019-12-18 | 2020-03-24 | 株洲钻石切削刀具股份有限公司 | Cutting tool |
| WO2020088190A1 (en) * | 2018-11-02 | 2020-05-07 | 株洲钻石切削刀具股份有限公司 | Stably clamped drilling machining tool |
| CN113828839A (en) * | 2021-10-22 | 2021-12-24 | 深圳市鑫国钰精密工具有限公司 | Rotary cutter capable of being repeatedly disassembled |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855576A (en) * | 2016-05-25 | 2016-08-17 | 株洲钻石切削刀具股份有限公司 | Rotary cutter having clamping connector changing function and cutter system |
| CN105880706A (en) * | 2016-05-25 | 2016-08-24 | 株洲钻石切削刀具股份有限公司 | Rotating cutter with clamping port switching function and cutter system |
| CN109262026A (en) * | 2018-11-02 | 2019-01-25 | 株洲钻石切削刀具股份有限公司 | A kind of accurate drilling machining cutter of axially position |
| CN109262026B (en) * | 2018-11-02 | 2019-08-09 | 株洲钻石切削刀具股份有限公司 | A kind of accurate drilling machining cutter of axially position |
| WO2020088190A1 (en) * | 2018-11-02 | 2020-05-07 | 株洲钻石切削刀具股份有限公司 | Stably clamped drilling machining tool |
| CN110899808A (en) * | 2019-12-18 | 2020-03-24 | 株洲钻石切削刀具股份有限公司 | Cutting tool |
| CN113828839A (en) * | 2021-10-22 | 2021-12-24 | 深圳市鑫国钰精密工具有限公司 | Rotary cutter capable of being repeatedly disassembled |
| CN113828839B (en) * | 2021-10-22 | 2023-07-21 | 深圳市鑫国钰精密工具有限公司 | Rotary cutter capable of being repeatedly disassembled |
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|---|---|
| CN104338974B (en) | 2017-10-27 |
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