CN107971542A - For processing the ladder drill mill of kidney slot - Google Patents
For processing the ladder drill mill of kidney slot Download PDFInfo
- Publication number
- CN107971542A CN107971542A CN201711441134.7A CN201711441134A CN107971542A CN 107971542 A CN107971542 A CN 107971542A CN 201711441134 A CN201711441134 A CN 201711441134A CN 107971542 A CN107971542 A CN 107971542A
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- China
- Prior art keywords
- cylinder
- chip removal
- knife
- kidney slot
- sword
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The present invention provides the ladder drill mill for processing kidney slot, its can solve the problems, such as tradition first to drill again processing efficiency existing for hole milling mode is low, the cost of charp tool is high, processing quality is poor and.It includes handle of a knife and the same cutter hub for being located in handle of a knife front end, it is characterised in that：Cutter hub includes the first cylinder and the second cylinder to link into an integrated entity with one heart from front to back, the diameter D1 of first cylinder is less than the diameter D2 of second cylinder, first cylinder is bit head, second cylinder is milling cutter portion, two spiral chip removal major troughs axially extended are offered on first cylinder so as to form two seamed edges on the first cylinder, and first two chip removal major troughs on cylinder take advantage of a situation and extend to the second cylinder, two chip removal major troughs and two chip removal pair grooves of second cylinder equipped with two spiral chip removal pair grooves and on the second cylinder are circumferentially spaced to be opened up so that the outer weekly interval of the second cylinder forms first week sword, second week sword.
Description
Technical field
The present invention relates to field of machining, particularly for the ladder drill mill of processing kidney slot.
Background technology
Kidney slot is a kind of special location hole, is usually used in the phase of regulating fender, positioning plate, template when assembling between part
Mutual position.The processing of traditional kidney slot is that round hole is first drilled out on workpiece mostly, and milling cutter is then inserted into round hole and is laterally moved
It is dynamic, round hole is expanded into by kidney slot by milling cutter side edge；Its not only manufacturing procedure is more, efficiency is low and also due to its using
Big surplus in-milling, the knife that often shakes when being processed using conventional milling cutters is serious, disconnected sword even occurs in easy tipping, this just leads
The cost of charp tool applied in processing is higher；And the surface quality for kidney slot its hole wall processed using this traditional processing mode
Difference, orifice edge burr are more and dimensional accuracy is overproof serious, can not meet processing quality requirement.
The content of the invention
In view of the above-mentioned problems, the present invention provides the ladder drill mill for processing kidney slot, it can solve traditional subdrilling
Processing efficiency existing for hole milling mode is low again, the cost of charp tool is high, processing quality is poor in hole and the problem of.
Its technical solution is, for processing the ladder drill mill of kidney slot, it includes handle of a knife and is located in the handle of a knife with same
The cutter hub of front end, it is characterised in that：The cutter hub includes the first cylinder and the second cylinder to link into an integrated entity with one heart from front to back,
The diameter D1 of first cylinder is less than the diameter D2 of second cylinder, and first cylinder is bit head, second circle
Column is milling cutter portion, and two spiral chip removal major troughs axially extended are offered on first cylinder so as in the first cylinder
Two seamed edges of upper formation, and two chip removal major troughs on first cylinder take advantage of a situation and extend to second cylinder, described second
Cylinder is equipped with two spiral chip removal pair grooves and two chip removal major troughs on second cylinder and two chip removal pair groove edges
It is circumferentially-spaced to open up so that the outer weekly interval of second cylinder forms first week sword, second week sword.
Further, core thickness d1=0.25D1~0.35D1 of two chip removal major troughs on second cylinder, described two
Core thickness d2=0.55D2~0.65D2 of bar chip removal pair groove, and d1 ＜ d2.
Further, on second cylinder rake face of two second week swords respectively in the counterclockwise direction with two
The line of the point of a knife of first week sword forms angleWith WithMeet the following conditionsAnd
Further, the land of the second week sword be equipped with sequentially connected major first flank, knife face and the after second
Knife face after three, the major first flank is burnishing-in land and burnishing-in margin width d3 is 0.02~0.08mm, knife after described first
The angular range for the relief angle that face is formed with tangent line at cylinder cutting edge is 2 °~5 °.
Further, the seamed edge front end of first cylinder is equipped with point of a knife chamfering, two seamed edges of first cylinder with
Coplanar passivation structure of the passivation width for a is used at the cutting edge switching for the main sword that front end face is formed, the point of a knife chamfering is using blunt
Change the arc surface formula passivating structure that width is b, and main sword passivation width a is more than passivation width b at point of a knife chamfering.
The beneficial effects of the present invention are：
(1) drill bit and milling cutter are attached on a cutter by it, i.e. the bit head of the first cylinder disclosure satisfy that axial drilling,
The milling cutter portion of second cylinder disclosure satisfy that the function of radial direction milling, so that time processing be with regard to that can shape kidney slot, therefore can carry significantly
High processing efficiency, reduce the cost of charp tool；
(2) its chip removal major trough set can ensure enough chip spaces, and chip removal master is provided with the same time on the second cylinder
Groove and chip removal pair groove and chip removal major trough and the core thickness of chip removal pair groove differ, and so as to increase milling edge number, further improve and add
Work efficiency rate；
(3) rake face of two second week swords distinguishes the knife with two first week swords in the counterclockwise direction on its second cylinder
The angle that the line of point is formedWithAngle it is unequal, i.e., cutting edge employ not decile design, so as to cutting when
The cutting frequency of alternation is produced, it is thus not easy-to-use to resonate with lathe, and then effectively inhibit chattering of being produced in milling
Phenomenon, avoids the damage chattered to cutter, greatly improves cutting-tool's used life, further reduce the cost of charp tool；
Burnishing-in land is provided with the second week sword of (4) second cylinders, therefore it can effectively improve the vertical line of hole wall surface, and
The rear knife face of second week sword can effectively improve cutting edge strength using the design of more knife faces, so as to effectively improve processing quality；
(5) the coplanar passivation width of the main sword of its first cylinder and the circular arc passivation width at point of a knife chamfering are unequal, energy
Enough ensure not weakening point of a knife sharpness while main sword cutting edge strength, so as to effectively reduce aperture burr, further ensure
Processing quality.
Brief description of the drawings
Fig. 1 is the structure diagram that the present invention is used to process the ladder drill mill of kidney slot；
Fig. 2 is A-A in Fig. 1 to amplification profile structure diagram；
Fig. 3 is enlarged structure schematic diagram at the I in Fig. 2；
Fig. 4 is the enlarged structure schematic diagram of the first column part in ladder drill mill of the present invention for processing kidney slot；
Fig. 5 is B-B cross-section structure diagram in Fig. 4；
Fig. 6 be in Fig. 4 C-C to cross-sectional view.
Reference numeral：10- handle of a knifes, 20- cutter hubs, the first cylinders of 21-, 211- seamed edges, 212- point of a knife chamferings, 22- second justify
Column, first week sword of 221-, 222- second week swords, 2221- major first flanks, knife face after 2222- second, knife face after 2223- the 3rd,
31- chip removal major troughs, 32- chip removal pair grooves.
Embodiment
See Fig. 1, the present invention is used for the ladder drill mill for processing kidney slot, it includes the handle of a knife 10 of a diameter of D3 and is set with coaxial
Cutter hub 20 in 10 front end of handle of a knife, cutter hub 20 include the first cylinder 21 and the second cylinder to link into an integrated entity with one heart from front to back
22, the diameter D1 of the first cylinder 21 are less than the diameter D2 of the second cylinder 222, and the first cylinder 21 is bit head, and the second cylinder 22 is
Milling cutter portion, two spiral chip removal major troughs 31 axially extended are offered on the first cylinder 21 so as to the shape on the first cylinder
Into two seamed edges 211, and two chip removal major troughs 31 on the first cylinder 21 take advantage of a situation and extend to the second cylinder 22, on the second cylinder 22
Equipped with two chip removal major troughs 31 on two spiral chip removal pair grooves 32 and the second cylinder 22 and two chip removal pair grooves 32 along week
Opened up to interval so that the outer weekly interval of the second cylinder 22 forms first week sword 221, second week sword 222；In the present embodiment, two
Bar pair chip space 32 is spiral to extend forwardly into the first cylinder 21, makees as only two seamed edges 16 on the first cylinder 21 of bit head
Cutting is participated in for cutting edge, it is equal as two first week swords, 221, two second week swords 222 on second cylinder 22 in milling cutter portion
Participate in cutting as cutting edge, so as to improve processing efficiency.
See Fig. 2, core thickness d1=0.25D1~0.35D1 of two chip removal major troughs 31 on the second cylinder 22, it can guarantee that
Big surplus iron filings are smoothly discharged during the bit cutting of one cylinder；Core thickness d2=0.55D2~0.65D2 of two chip removal pair grooves 32,
And d1 ＜ d2, by increasing capacitance it is possible to increase cutter rigidity；In production application, different-diameter can be directed to and manufacture difficulty selection is different
Core is thick, to adapt to different rapidoprints and operating mode.
See Fig. 2, on the second cylinder 22 rake face of two second week swords 222 respectively in the counterclockwise direction with two first week
The line of the point of a knife of sword 221 forms angleWith WithMeet the following conditionsSo as to form the second cylinder 22
The not decile design of milling Zhou Ren, andThe big I of two angles difference is adjusted according to different-diameter and the facewidth.
See Fig. 3, the land of the second week sword 222 on the second cylinder 22 be equipped with sequentially connected major first flank 2221,
Knife face 2223 after knife face 2222 and the 3rd after second, major first flank 2221 is burnishing-in land and burnishing-in margin width d3 is 0.02
~0.08mm, hole wall chatter mark is effectively improved by the setting of burnishing-in land；Major first flank 222 and tangent line shape at cylinder cutting edge
Into relief angle α angular range be 2 °~5 °；Relief angle α is designed using small relief angle, can effectively increase the cutting edge angle of wedge, and it is strong to improve cutting edge
Degree；The relief angle of knife face 2223 makes choice according to material property after knife face 2222 and the 3rd after second.
See Fig. 4,211 front end of seamed edge of the first cylinder 21 is equipped with point of a knife chamfering 212, two seamed edges 211 of the first cylinder 21
Passivation width is used to see Fig. 5, it there can be shovel for the coplanar passivation structure of a at the switching of the cutting edge of the main sword formed with front end face
The defects of solving the microcosmic notch of cutting edge roundness after sharpening, E faces are rake face in Fig. 5, and F faces are rear knife face；Point of a knife chamfering 212 uses
The arc surface formula passivating structure that width is b is passivated, sees Fig. 6, and main sword passivation width a is more than passivation width b at point of a knife chamfering, its
It can guarantee that and not weaken point of a knife sharpness while main sword cutting edge strength, effectively reduce aperture burr；Being passivated width a, b size can be with
It is adjusted according to part to be processed material and the amount of feeding.
The specific implementation to the present invention is described in detail above, but content is only the preferable embodiment party of the invention
Case, it is impossible to be construed as limiting the practical range of the invention.All impartial changes made according to the invention application range
Change and improvement etc., should all still belong within the patent covering scope of the present invention.
Claims (5)
1. the ladder drill mill for processing kidney slot, it includes handle of a knife (10) and the same cutter hub for being located in the handle of a knife front end
(20), it is characterised in that：The cutter hub (20) includes the first cylinder (21) to link into an integrated entity with one heart from front to back and the second circle
Column (22), the diameter D1 of first cylinder (21) are less than the diameter D2 of second cylinder (22), first cylinder (21)
For bit head, second cylinder (22) is milling cutter portion, and two spiral shells axially extended are offered on first cylinder (21)
The chip removal major trough (31) of shape is revolved so as to form two seamed edges (211) on the first cylinder, and two on first cylinder (21)
Bar chip removal major trough (31), which is taken advantage of a situation, extends to second cylinder (22), and second cylinder (22) is equipped with two spiral rows
The secondary groove (32) of bits and two chip removal major troughs (31) on second cylinder (22) and two chip removal pair grooves (32) are circumferentially spaced
Open up so that the outer weekly interval of second cylinder (22) forms first week sword (221), second week sword (222).
2. the ladder drill mill according to claim 1 for being used to process kidney slot, it is characterised in that：On second cylinder
Two chip removal major troughs (31) core thickness d1=0.25D1~0.35D1, the core thickness d2=of two chip removal pairs groove (32)
0.55D2~0.65D2, and d1 ＜ d2.
3. the ladder drill mill according to claim 1 for being used to process kidney slot, it is characterised in that：Second cylinder
(22) rake face of upper two second week swords (222) respectively in the counterclockwise direction with two first week sword (221) point of a knife
Line formed angleWithWithMeet the following conditionsAnd
4. the ladder drill mill according to claim 1 for being used to process kidney slot, it is characterised in that：The second week sword
(222) land is equipped with knife face after knife face (2222) and the 3rd after sequentially connected major first flank (2221), second
(2223), the major first flank (2221) is burnishing-in land and burnishing-in margin width d3 is 0.02~0.08mm, described first
The angular range for the relief angle α that knife face (2221) is formed with tangent line at cylinder cutting edge is 2 °~5 ° afterwards.
5. the ladder drill mill according to claim 1 for being used to process kidney slot, it is characterised in that：First cylinder
(21) seamed edge (211) front end is equipped with point of a knife chamfering (212), two seamed edges (211) of first cylinder (21) and front end face
Coplanar passivation structure of the passivation width for a is used at the switching of the cutting edge of the main sword formed, the point of a knife chamfering (212) is using blunt
Change the arc surface formula passivating structure that width is b, and main sword passivation width a is more than passivation width b at point of a knife chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441134.7A CN107971542A (en) | 2017-12-27 | 2017-12-27 | For processing the ladder drill mill of kidney slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441134.7A CN107971542A (en) | 2017-12-27 | 2017-12-27 | For processing the ladder drill mill of kidney slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107971542A true CN107971542A (en) | 2018-05-01 |
Family
ID=62007965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441134.7A Pending CN107971542A (en) | 2017-12-27 | 2017-12-27 | For processing the ladder drill mill of kidney slot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107971542A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465852A (en) * | 2018-06-14 | 2018-08-31 | 江门市中刀精密科技有限公司 | A kind of brill milling hinge composite cutter |
| CN113458472A (en) * | 2021-07-15 | 2021-10-01 | 江门市中刀精密科技有限公司 | Multi-step multi-profile coating forming reaming milling cutter |
| CN113857539A (en) * | 2021-09-29 | 2021-12-31 | 东莞联阳切削工具有限公司 | Segmented machining anti-resonance milling cutter and waist-shaped hole milling machining process |
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| CN201524832U (en) * | 2009-09-15 | 2010-07-14 | 无锡国宏硬质合金模具刃具有限公司 | Spiral milling cutter with four unequal edges |
| CN202779937U (en) * | 2012-08-14 | 2013-03-13 | 武汉泰尔斯刀具有限公司 | Tooth space structure of drill |
| CN204053030U (en) * | 2014-08-12 | 2014-12-31 | 苏州欧美克合金工具有限公司 | A kind of brill milling compound tool |
| CN105473262A (en) * | 2014-06-17 | 2016-04-06 | 住友电工硬质合金株式会社 | Drill |
| CN206104983U (en) * | 2016-06-04 | 2017-04-19 | 东莞市富奇实业有限公司 | Highlight aluminium is with founding milling cutter utensil |
| CN207695701U (en) * | 2017-12-27 | 2018-08-07 | 苏州阿诺精密切削技术有限公司 | A kind of ladder drill mill for processing kidney slot |
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2017
- 2017-12-27 CN CN201711441134.7A patent/CN107971542A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201524832U (en) * | 2009-09-15 | 2010-07-14 | 无锡国宏硬质合金模具刃具有限公司 | Spiral milling cutter with four unequal edges |
| CN202779937U (en) * | 2012-08-14 | 2013-03-13 | 武汉泰尔斯刀具有限公司 | Tooth space structure of drill |
| CN105473262A (en) * | 2014-06-17 | 2016-04-06 | 住友电工硬质合金株式会社 | Drill |
| CN204053030U (en) * | 2014-08-12 | 2014-12-31 | 苏州欧美克合金工具有限公司 | A kind of brill milling compound tool |
| CN206104983U (en) * | 2016-06-04 | 2017-04-19 | 东莞市富奇实业有限公司 | Highlight aluminium is with founding milling cutter utensil |
| CN207695701U (en) * | 2017-12-27 | 2018-08-07 | 苏州阿诺精密切削技术有限公司 | A kind of ladder drill mill for processing kidney slot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108465852A (en) * | 2018-06-14 | 2018-08-31 | 江门市中刀精密科技有限公司 | A kind of brill milling hinge composite cutter |
| CN113458472A (en) * | 2021-07-15 | 2021-10-01 | 江门市中刀精密科技有限公司 | Multi-step multi-profile coating forming reaming milling cutter |
| CN113857539A (en) * | 2021-09-29 | 2021-12-31 | 东莞联阳切削工具有限公司 | Segmented machining anti-resonance milling cutter and waist-shaped hole milling machining process |
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