CN108927573A - A kind of chamfering tool - Google Patents
A kind of chamfering tool Download PDFInfo
- Publication number
- CN108927573A CN108927573A CN201710378916.4A CN201710378916A CN108927573A CN 108927573 A CN108927573 A CN 108927573A CN 201710378916 A CN201710378916 A CN 201710378916A CN 108927573 A CN108927573 A CN 108927573A
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- China
- Prior art keywords
- cutter head
- chamfering
- chamfering tool
- processed
- parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Milling Processes (AREA)
Abstract
The present invention relates to a kind of chamfering tools, the chamfering tool includes cutter head, cutter head includes chamfer cutting sword, the chamfering tool further includes the locating piece for centre bore or outer circumference surface location fit with parts to be processed, the upper end of locating piece is the first positioning region being coaxially disposed with the rotation axis of the cutter head, lower end is the second positioning region for the coaxial location fit of centre bore or outer circumference surface with parts to be processed, the first positioning region and the coaxial arrangement of the second positioning region.Chamfering tool in the present invention, the problem of being avoided in chamfer process so that the chamfer dimesion processed is uniform by the axis coaxle of locating piece guarantee cutter head rotation axis and parts to be processed, cause chamfering to fail because of cutter head rotation axis run-off the straight.
Description
Technical field
The present invention relates to a kind of chamfering tools.
Background technique
Carrying out chamfer machining to the edge of tubular cylinder part is technique relatively conventional in part processing, for some
The tubular cylinder part being assemblied in large-scale product, cannot achieve using lathe chamfering, in response to this, usually in flashlight
Portable chamfering tool is installed and carries out chamfering in the head of brill.
Authorization Notice No. is that the Chinese utility model patent of CN205764222U discloses a kind of compound tool, the composite cutter
Tool includes knife handle and cutter head, and the end of cutter head has processing blind hole, offers and the processing blind hole radial communication on cutter head
Cutter head divided circumferentially uniformly distributed four entity parts by separate slot, separate slot, on the outer peripheral surface of each entity part and processing blind hole
Interior cutting edge and outer cutting edge are respectively equipped on bottom hole inner wall, inside and outside cutting edge is respectively used to processing inner periphery chamfering and outer circle
All chamferings.
When carrying out chamfering using excircle of the above-mentioned compound tool to parts to be processed, the requirement to operator is compared
It is high, it is difficult to guarantee cutter will not run-off the straight the phenomenon that, once cutter run-off the straight, then it is uneven to will lead to excircle chamfering,
Chamfering is caused to fail.When excircle for parts to be processed is standard circumference, it is still difficult to ensure tool rotating shaft line and part
Coaxially, and for the parts to be processed that excircle is non-standard circumference, such as the tubular cylinder being fixed in large-scale product
Body part, as shown in Figure 1, tubular cylinder part 1 is fixed in large-scale product 9, due to process requirements, tubular cylinder part
1 top is machined with a notch 10, so that the excircle of tubular cylinder part 1 is non-standard circumference, using above-mentioned compound
When cutter carries out chamfering, it is more difficult to ensure the axis coaxle of cutter head rotation axis and parts to be processed, in turn results in chamfering mistake
It loses.
Summary of the invention
The purpose of the present invention is to provide a kind of chamfering tool, tool rotating shaft line when solving chamfering in the prior art
It is easy to happen the technical issues of inclination in turn results in chamfering failure.
To achieve the above object, the technical scheme is that：
A kind of chamfering tool, including cutter head, cutter head include chamfer cutting sword, which further includes locating piece, locating piece
Upper end is the first positioning region being coaxially disposed with the rotation axis of the cutter head, and lower end is for the centre bore with parts to be processed
Or the second positioning region of the coaxial location fit of outer circumference surface, the first positioning region and the coaxial arrangement of the second positioning region.
The locating piece is rotatably assorted with cutter head.
There is the positioning reference plane for the top end face location fit with parts to be processed on locating piece.
The chamfer cutting sword is used to carry out the excircle of parts to be processed chamfering, the locating piece be used for it is to be processed
The centre bore location fit of part.
The locating piece be locating rod, locating rod include coaxial arrangement upper rod section, lower rod section and be located at upper rod section and
Positioning convex platform between lower rod section, upper rod section constitute the first positioning region, and lower rod section constitutes the second positioning region, the lower end of positioning convex platform
Face constitutes the positioning reference plane.
Mounting hole is coaxially offered on cutter head, the lower rod section of locating rod is by bearing rolling assembling in mounting hole.
The chamfer cutting sword is used to carry out the excircle of parts to be processed chamfering, and the cutter head is overall structure, knife
Head includes the cutting portion with the chamfer cutting sword.
Cutting portion is around circumferentially-spaced distribution, and each cutting portion is counterclockwise around the rotation axis of cutter head or clockwise tilt sets
It sets.
Separate slot is formed between adjacent two cutting portion, the two lateral walls of separate slot respectively constitute the rake face of adjacent two cutting portion
And minor flank, the inside of each cutting portion have a flank, the intersection of rake face and flank forms blade, the flank from
Up to lower towards being obliquely installed on the outside of cutter head so that the cutter head lower end is in flaring structure.
The outside of the cutting portion has from top to bottom towards the inclined inclined-plane in the inside of cutter head, the inclined-plane and rake face and
The intersection point of flank forms point of a knife.
The beneficial effects of the invention are as follows：The cutter head of chamfer tool has the chamfer cutting sword for chamfering in the present invention, should
Chamfering tool further includes locating piece, and the upper end of locating piece is the first positioning region being coaxially disposed with the rotation axis of cutter head, lower end
For penetrate parts to be processed in chamfering centre bore in and with the coaxial location fit of centre bore, or in chamfering to be processed
Second positioning region of the outside of part and the coaxial location fit of the outer circumference surface of parts to be processed, the first positioning region and the second positioning
Portion's coaxial arrangement, and then ensure that the axis coaxle of cutter head rotation axis and parts to be processed, under the positioning action of locating piece,
So that the chamfer dimesion processed is uniform, avoid in chamfer process, causes chamfering because of cutter head rotation axis run-off the straight
The problem of failure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the tubular cylinder part being fixed in large-scale product in background technique；
Fig. 2 is a kind of usage state diagram of embodiment of chamfering tool of the present invention；
Fig. 3 is a kind of schematic cross-section of the cutter hub of embodiment of chamfering tool of the present invention；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is a kind of structural schematic diagram of the locating rod of embodiment of chamfering tool of the present invention.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
A kind of specific embodiment 1 of chamfering tool of the invention, as shown in Figures 2 to 5, the chamfering tool include cutter hub 5
With the locating piece 2 being rotatably installed on cutter hub, knife handle 52 of the cutter hub 5 by cutter head 51 and positioned at cutter head upper end is formed, and knife handle 52 is used
In the output revolving shaft assembly connection with electric hand drill, for cooperating electric hand drill to realize portable chamfering.52 one of cutter head 51 and knife handle
Molding setting, cutter head 51 include the cutting portion 511 with chamfer cutting sword, and the chamfer cutting sword of cutting portion 511 is used for to be added
The excircle of work part 1 carries out chamfer machining, and in the present embodiment, there are four cutting portions 511, and circumferentially-spaced uniformly around cutter head
Distribution.
Locating piece 2 is locating rod, offers downward opening mounting hole 53 inside cutter head 51, locating rod is rotatably installed in peace
It fills in hole 53.In the present embodiment, mounting hole 53 is stepped and including major diameter hole section 532 and path hole section 531, path hole section
Sleeve 4 and bearing 3 are sequentially installed in 531, outer ring and 531 inner wall of path hole section of bearing 3 are fixed, and the upper end of locating rod is fixed
It is mounted in 3 inner ring of bearing, locating rod is rotatably installed in mounting hole 53 by bearing 3.Locating rod includes the upper of coaxial arrangement
Rod segment 22, lower rod section 21 and the positioning convex platform 23 between upper rod section and lower rod section, the upper rod section 22 of locating rod pass through axis
It holds 3 to be rotatably installed in cutter head 51, the upper rod section 22 constitutes first positioning region coaxial with cutter head rotation axis.Locating rod
In the centre bore that lower rod section 21 penetrates parts to be processed in chamfering, and with the coaxial location fit of the centre bore of parts to be processed,
The lower rod section 21 is constituted for the second positioning region with the coaxial location fit of the centre bore of parts to be processed.Positioning convex platform 23
Lower end surface 231 in chamfering and the top end face location fit of parts to be processed, and then limit cutter head 51 relative to be processed
The height of part guarantees that chamfering angle size is fixed, and by replacing different locating rods, adjusts the height of positioning convex platform, realizes chamfering
Size adjustment；The lower end surface 231 of the positioning convex platform constitutes the positioning for the top end face location fit with parts to be processed
Datum level.In the present embodiment, the lower end of upper rod section 22 carries out fillet processing, forms the gradually smaller reduced diameter portion 211 of radius,
Aspect locating rod penetrates inside parts to be processed.
The lower rod section 21 of locating rod when in use, is penetrated into the center of parts to be processed 1 by the chamfering tool in the present invention
Kong Zhong, the lower end surface of positioning convex platform 23 and the top end face location fit of parts to be processed 1, four cutting portions treat processing respectively
The excircle of part 1 carries out outer rounded corner.Since locating rod and cutter head are rotatably assorted, in chamfer process, cutter head 51 it is opposite to
Part 1 is processed to rotate, and locating rod is fixed with respect to parts to be processed 1, avoids between locating rod and the centre bore of parts to be processed
Generate abrasion.Due to the lower rod section and the coaxial location fit of parts to be processed of locating rod, the rotation axis of upper rod section and cutter head is same
Axis, and then ensure that the concentricity of cutter head rotation axis and parts to be processed, it realizes that chamfer dimesion is uniform, avoids occurring because of cutter head
Wallowing motion and the phenomenon that cause chamfering to fail.In use, locating rod can be replaced as needed, by changing determining for different height
Position boss adjusts the size of chamfering.
In the present embodiment, cutter head 51 is overall structure, and four cutting portions 511 are by being provided with 51 lower end of cutter head and major diameter
The separate slot 55 of 532 radial communication of hole section is separated, and separate slot 55 constitutes the chip space between adjacent two cutting portion 511.Separate slot 55
Two lateral walls respectively constitute the rake face 512 and minor flank 514 of adjacent two cutting portion 511, the inside of each cutting portion 511
With flank 513, the intersection of rake face 512 and flank 513 forms chamfer cutting sword 515.Four cutting portions 511 are around cutter head
Circumferential direction be obliquely installed counterclockwise, notch 10 in parts to be processed can be avoided by being formed between the lower end of adjacent two cutting portion
Avoiding space 54.When the chamfering tool is docked with parts to be processed, the avoiding space 54 between adjacent two cutting portion can effectively be kept away
Open the notch 10 in parts to be processed.And in chamfer process, remain that at least there are three cutting portion and parts to be processed
Periphery be engaged so that forming between cutter head and parts to be processed at 3 points stablizes support cooperation, cutter head is not susceptible to tilt
It swings, guarantees the concentricity of cutter head and parts to be processed.
If the plane perpendicular to 51 rotation axis of cutter head is basal plane 56, before the angle between rake face 512 and basal plane 56 is
Angle a, anterior angle a range is between 60 ° ~ 90 °, and anterior angle is smaller, then blade is sharper, but blade strength can decrease, preferably before
Angle a is 75 °, under the premise of guaranteeing keen edge, it is ensured that blade strength is sufficiently large.Angle between minor flank 514 and basal plane
It is 72 ° for front clearance b, preferably front clearance b, improves the intensity of blade.Flank 513 is from top to bottom gradually rolled outwardly and is tiltedly set
Set, so that cutter head lower end is in flaring structure, can parts to be processed chamfering to different-diameter, improve the scope of application.Afterwards
Angle c between knife face 513 and cutter head axis is 45 °, guarantees that the chamfer angle processed is 45 °.The relief angle of cutting portion is 15 °
（It can not be shown in figure）.The outside of cutting portion has from top to bottom towards the inclined-plane of the inner inclination of cutter head 517, inclined-plane 517 with
Rake face 512 and the intersection point of flank 513 form point of a knife 518, and inclined-plane 517 can increase blade point of a knife angle, and it is strong to increase point of a knife
Degree；It is preferred that the angle d between inclined-plane 517 and cutter head axis is 10 °, if without inclined-plane, position of tool tip thickness is smaller, and wall is thin, by force
Spend low, point of a knife is to wear in use process.The intersection 516 and opposite two cutting portion centers of flank 513 and minor flank 514
Line 58 between angle e be 25 °, be on the one hand conducive to chip removal in this way, while reducing vibration of the point of a knife in chamfering, reduce
Show roughness.
In other embodiments of the invention, the quantity of cutting portion is also less than four, can also be greater than four.On cutter head
Cutting portion can also have simultaneously inner circle chamfering blade and outer on the inner circle chamfering blade or cutter head for rounded corner in processing
Rounded corner blade.Cutter head can not also be overall structure, and if cutter head includes bit body, cutting portion is independent cutting tool,
Cutting tool is fixed on bit body by knife rest.Locating piece can also be the abutment sleeve being arranged in outside cutter head, use
When, the coaxial location fit of excircle of abutment sleeve and parts to be processed.Locating piece may be also secured on cutter head, when chamfering,
Locating piece is rotated relative to parts to be processed.Positioning convex platform can be not provided in locating rod, positioning reference plane is arranged on cutter head, such as fixed
Position datum level can be the lower hole end surface of diameter holes section, when chamfering, the lower hole end surface of path hole section and the top of parts to be processed
End face location fit.Or save positioning reference plane, when processing chamfering, chamfering angle size is controlled by operator's range estimation.
In the present embodiment, locating piece and cutter head are coaxially disposed, and in other embodiments, locating piece can be not coaxial with cutter head, it is only necessary to protect
One end and the cutter head coaxial cooperation of locating piece are demonstrate,proved, the other end and parts to be processed coaxial cooperation can meet cutter head and to be processed zero
Part is coaxial.Locating rod can also be fixedly connected with cutter head or locating rod belongs to a part of cutter head.
Claims (10)
1. a kind of chamfering tool, including cutter head, cutter head includes chamfer cutting sword, it is characterised in that：The chamfering tool further includes fixed
Position part, the upper end of locating piece are the first positioning region being coaxially disposed with the rotation axis of the cutter head, lower end be for it is to be added
Second positioning region of the coaxial location fit of centre bore or outer circumference surface of work part, the first positioning region and the second positioning region are coaxially set
It sets.
2. chamfering tool according to claim 1, it is characterised in that：The locating piece is rotatably assorted with cutter head.
3. chamfering tool according to claim 2, it is characterised in that：Have on locating piece for the top with parts to be processed
Hold the positioning reference plane of end face location fit.
4. chamfering tool according to claim 3, it is characterised in that：The chamfer cutting sword is used for parts to be processed
Excircle carries out chamfering, and the locating piece is for the centre bore location fit with parts to be processed.
5. chamfering tool according to claim 4, it is characterised in that：The locating piece is locating rod, and locating rod includes same
Upper rod section, lower rod section and the positioning convex platform between upper rod section and lower rod section of axis setting, upper rod section constitute the first positioning
Portion, lower rod section constitute the second positioning region, and the lower end surface of positioning convex platform constitutes the positioning reference plane.
6. chamfering tool according to claim 5, it is characterised in that：Mounting hole is coaxially offered on cutter head, locating rod
Lower rod section is by bearing rolling assembling in mounting hole.
7. chamfering tool according to claim 1, it is characterised in that：The chamfer cutting sword is used for parts to be processed
Excircle carries out chamfering, and the cutter head is overall structure, and cutter head includes the cutting portion with the chamfer cutting sword.
8. chamfering tool according to claim 7, it is characterised in that：Cutting portion around circumferentially-spaced distribution, each cutting portion around
The rotation axis of cutter head is counterclockwise or is obliquely installed clockwise.
9. chamfering tool according to claim 8, it is characterised in that：Separate slot is formed between adjacent two cutting portion, separate slot
Two lateral walls respectively constitute the rake face and minor flank of adjacent two cutting portion, and the inside of each cutting portion has flank, preceding
Knife face and the intersection of flank form blade, and the flank is from top to bottom towards being obliquely installed so that the cutter head on the outside of cutter head
Lower end is in flaring structure.
10. chamfering tool according to claim 9, it is characterised in that：The outside of the cutting portion has court from top to bottom
The inclined inclined-plane in the inside of cutter head, the inclined-plane and rake face and the intersection point of flank form point of a knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710378916.4A CN108927573B (en) | 2017-05-25 | 2017-05-25 | Chamfering tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710378916.4A CN108927573B (en) | 2017-05-25 | 2017-05-25 | Chamfering tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108927573A true CN108927573A (en) | 2018-12-04 |
| CN108927573B CN108927573B (en) | 2020-10-23 |
Family
ID=64451497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710378916.4A Active CN108927573B (en) | 2017-05-25 | 2017-05-25 | Chamfering tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108927573B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201078Y (en) * | 2008-05-17 | 2009-03-04 | 柳州五菱柳机动力有限公司 | Machine body cylinder bore chamfering apparatus |
| CN201493493U (en) * | 2009-06-05 | 2010-06-02 | 贵州航天乌江机电设备有限责任公司 | Borer for processing step hole with small pore diameter |
| CN202726130U (en) * | 2012-08-08 | 2013-02-13 | 平高集团有限公司 | Countersink cutter for machining end surface circular groove |
| CN203843245U (en) * | 2014-04-30 | 2014-09-24 | 张西德 | Precise spot facing knife |
| CN204997173U (en) * | 2015-07-29 | 2016-01-27 | 合肥荣事达电子电器集团有限公司 | From centering chamfer ware |
-
2017
- 2017-05-25 CN CN201710378916.4A patent/CN108927573B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201201078Y (en) * | 2008-05-17 | 2009-03-04 | 柳州五菱柳机动力有限公司 | Machine body cylinder bore chamfering apparatus |
| CN201493493U (en) * | 2009-06-05 | 2010-06-02 | 贵州航天乌江机电设备有限责任公司 | Borer for processing step hole with small pore diameter |
| CN202726130U (en) * | 2012-08-08 | 2013-02-13 | 平高集团有限公司 | Countersink cutter for machining end surface circular groove |
| CN203843245U (en) * | 2014-04-30 | 2014-09-24 | 张西德 | Precise spot facing knife |
| CN204997173U (en) * | 2015-07-29 | 2016-01-27 | 合肥荣事达电子电器集团有限公司 | From centering chamfer ware |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108927573B (en) | 2020-10-23 |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: No. 22, South Ring Road, Pingdingshan, Henan, Henan Applicant after: HENAN PING GAO ELECTRIC Co.,Ltd. Applicant after: PINGGAO GROUP Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Address before: No. 22, South Ring Road, Pingdingshan, Henan, Henan Applicant before: HENAN PING GAO ELECTRIC Co.,Ltd. Applicant before: PINGGAO GROUP Co.,Ltd. Applicant before: State Grid Corporation of China |
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| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181130 Address after: No. 22, South Ring Road, Pingdingshan, Henan, Henan Applicant after: PINGGAO GROUP Co.,Ltd. Applicant after: HENAN PING GAO ELECTRIC Co.,Ltd. Applicant after: STATE GRID CORPORATION OF CHINA Applicant after: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Address before: No. 22, South Ring Road, Pingdingshan, Henan, Henan Applicant before: HENAN PING GAO ELECTRIC Co.,Ltd. Applicant before: PINGGAO GROUP Co.,Ltd. Applicant before: STATE GRID CORPORATION OF CHINA |
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