CN202963585U - End mill for machining honeycomb material with high speed - Google Patents
End mill for machining honeycomb material with high speed Download PDFInfo
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- CN202963585U CN202963585U CN 201220510799 CN201220510799U CN202963585U CN 202963585 U CN202963585 U CN 202963585U CN 201220510799 CN201220510799 CN 201220510799 CN 201220510799 U CN201220510799 U CN 201220510799U CN 202963585 U CN202963585 U CN 202963585U
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- cutting body
- blade
- pulverizing
- cylinder blade
- back cone
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Abstract
The utility model discloses an end mill for machining a honeycomb material with high speed and aims to provide an end mill through which a disc blade is accurately positioned, clamped firmly and conveniently loaded and unloaded, the operation is safe and reliable, the dynamic balance precision is high and the parts can be rapidly replaced. The end mill mainly comprises a disc blade (2) which is fixedly connected to the cylindrical end face of a crushing cutting body (1), wherein the disc blade is a disc sawtooth blade provided with a back cone; a back cone connecting disc is connected with an axial sleeve (9); by virtue of a central stepped hole of the crushing cutting body (1), a circle of the back cone connecting disc (8) is clung to the end face, which is provided with a conical inclined surface, of the crushing cutting body; the back cone inclined surface on the end face of the inner side of a positioning sleeve (3) is in stationary fit with the axial sleeve through the front conical surface on the end face of the axial sleeve of the disc blade; and an axial countersunk bolt (4) is coaxially and fixedly connected with the crushing cutting body through the central stepped hole of the positioning sleeve. The phenomenon that the tool is loosely clamped or cannot be detached is avoided, and the problem that an unmachined part is pulled so as to deform by chips is solved.
Description
Technical field
The utility model relates to the slotting cutter that a kind of rotating speed is the High-speed Computer number control cutting cellular material workpiece of 20000 rev/mins to 23000 rev/mins.
Background technology
Cellular material is by paper scrap and foamed glue is bonding forms, and is mainly used in the sandwich material of inner support.Because its specific strength is high, and be widely used in the sandwich component of non-bearing in the fields such as Aero-Space.NOMEX paper substrate honeycomb core is the very special material of a kind of structure, and this special construction of comb core material and special mechanical property make it very easily produce the cutter relieving distortion in process, affect machining accuracy.Present common processing method is to adopt the combination type milling cutter high-speed milling, and the blade of milling cutter cuts off cellular material, and the top sawtooth of cutter is pulverized the honeycomb smear metal of being cut off by blade.Prior art is processed the cutter of this material, usually adopt the cylinder blade that is connected successively, pulverize cutting body, knife bar and by locking key, the housing screw head is fastening combines.Because the honeycomb cutter all uses on high-speed machine tool, in processing, the circular peripheral-mill blade length that overhangs equals the thickness of blade, and the main cutting edge of cylinder blade is with the honeycomb core milling along the normal direction of main shaft.If the material of cylinder blade is bad, directly affect cutting ability, the wearability of cutter, the cutting wear of cutter, if cylinder blade is not high with pulverizing cutting body quality of fit, can cause the tool diameter deviation large, directly affect the physical dimension of part.Present this employing connects firmly the slotting cutter of pulverizing cutting body by fastener hole on the cylinder blade circumference, when cutting cellular material workpiece, exist following deficiency it:
The strength decreased of the sheet type cylinder blade that prior art adopts, more easily produce stress when grinding, cause the cylinder blade crackle.
In actual applications, due to the tool diameter low precision, coaxiality deviation is large.The retain strength deficiency often occurs, honeycomb is pulled up, and owing to using special spanner well not compress, causes blade and pulverizes body and unclamp, and cellular material is pulled up that part is overproof even to be scrapped.Be that cylinder blade is installed poor partially larger in pulverizing cutting body, cylinder blade protrusion one side is completed the disconnected machined material of excision in cutter rotary cutting process, opposite side is opposite (cylinder blade does not protrude), and machined material only part cuts off, and is pulled up metaboly thereby produce cellular material.In actual applications, the diameter low precision, diameter error and coaxiality deviation are large.Be that cylinder blade is installed poor partially larger in pulverizing cutting body, cylinder blade protrusion one side is completed the disconnected machined material of excision in cutter rotary cutting process, opposite side is opposite (cylinder blade does not protrude), and machined material only part cuts off, and is pulled up metaboly thereby produce cellular material.In theory, the cut-out that cylinder blade can the complete independently comb core material.But in reality processing, not only unnecessary honeycomb core to be removed, also will guarantee the appearance and size of part, therefore, in reality processing, processing together after cylinder blade and pulverizing cutting body always make up.The dimensional accuracy of part to be processed guarantees by tool diameter, and the honeycomb cutter is an assembly, if it is fixing in the axial direction to pulverize cutting body 1, cylinder blade 2, is difficult to guarantee the diameter precision of cutter.Because this honeycomb set of knives component is many, radial dimension is uncontrollable, and the tool diameter error after combination is ± 0.25, is often the design accuracy that the combination precision of cutter has exceeded honeycomb parts, and work in-process can only be adjusted artificially procedure and compensate.The low dynamic balance accuracy that coaxiality deviation produces often causes the cylinder blade work in-process to produce radial-play and vibrations, thereby has larger hidden danger of quality.
Prior art knife combination connector loading and unloading inconvenience, cylinder blade expends greatly.When the cylinder blade of existing structure makes up with the pulverizing cutting body, the housing screw that the fastener hole of employing layout on annular circumferential connects, in use, need to pass through spanner, two straight pins on cutter are screwed, could compress cylinder blade and pulverize cutting body, because the housing screw head is very thin, (only having 2mm), hold-down apertures is little, when changing cylinder blade or pulverizing cutting body, the phenomenon that cutter clamping tightly maybe can't not be dismantled occurs often, tool disk blade clamping tightly can not cause and can't use, and even exists the potential safety hazard that cutter flies away from easily occurs.Next is that the abnormal spoilage problem of cutter is serious, and the consumption of cylinder blade is quite large.In process, the alignment deviation of cylinder blade makes dynamic balancing imbalance, and the foamed glue of cellular material junction is easy to cause the cylinder blade wearing and tearing, due to the dismounting difficulty, cylinder blade, pulverizing cutting body and the whole integral body of knife bar can only be scrapped, and then cause the cutter use cost high.
Nonmetric size honeycomb cutter service condition is limited, and manufacturing cost is high.At present various handle of a knifes commonly used are nearly all metric sizes, and and the imperial sizing that the shank standard items of prior art honeycomb cutter adopt wants the existing honeycomb cutter of clamping must use broach shell made in Great Britain, or chuck made in Great Britain.If the tool shank of supplier producer is produced by made in Great Britain, to valuate by nonstandard product, cause significantly rising for commodity price.，
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for existing honeycomb cutter, and a kind of cylinder blade accurate positioning is provided, and clamping is firm, easy to loading and unloading, safe and reliable, dynamic balance accuracy is high, the fast changeable parts can be realized the fast slotting cutter of the High-speed machining cellular material of location and clamping.，
the technical scheme that its technical problem that solves the utility model adopts is: a kind of slotting cutter of High-speed machining cellular material, have a pulverizing cutting body that is fixedly connected with handle of a knife and connect firmly at the cylinder blade 2 of pulverizing on cutting body 1 cylinder end face, it is characterized in that, described cylinder blade 2 is circular saw teeth cutter blades that are shaped with back cone, this back cone connect the disk axial sleeve 9 that is connected, by pulverizing cutting body 1 center stepped hole, back cone is connect round the fitting tightly at pulverizing cutting body 1 of disk 8 to be shaped with on the end face on circular cone inclined-plane, back cone inclined-plane on positioning sleeve 3 inner side ends is by the inner cone on cylinder blade 2 axial sleeve 9 end faces, stationary fit is in axial sleeve 9, axially dormant bolt 4 is pulverized cutting body 1 by coaxial the connecting firmly of positioning sleeve 3 center stepped holes.
The utility model has following beneficial effect than prior art.
Safe and reliable, dynamic balance accuracy is high.Adopted Central Symmetry due to the applying position of pulverizing cutting body 1 and cylinder blade 2 and cylinder blade 2 and positioning sleeve 3 applying positions, self centering circular cone contour localization has reduced the vibrations that the cylinder blade work in-process produces.Pulverize cutting body 1 and cylinder blade 2, cylinder blade 2 coordinates on employing circular cone inclined-plane, mating surface place with positioning sleeve 3 has eliminated radial clearance, has played self centering effect, has guaranteed that High-speed machining is to the dynamically balanced requirement of cutter.Because the coaxiality deviation of set of knives zoarium is little, accuracy of alignment is high, improved tool life good in the High-speed machining, the self-centering action of playing due to the circular cone contour localization simultaneously and the symmetry of cutter meet the high-speed balancing design principle, security reliability further improves, and has guaranteed the diameter precision after the knife combination, has improved the wearability of main cutting edge, the wearability of cylinder blade particularly, cylinder blade expends further reduction.Reduced production cost.
The cylinder blade accurate positioning, clamping is firm.The utility model adopts the circular cone inclined-plane positioning disc blade of unique design and pulverizes cutting body, positioning sleeve, cylinder blade and the radial-play of pulverizing cutting body have been reduced, and cutting force is little, cutting accuracy is high, the cut edge is level and smooth, without damaged chip, can solve well the serious problem of abnormal spoilage problem of a honeycomb core featheredge process technology difficult problem and cutter.Cylinder blade and pulverizing cutting body, positioning sleeve are all adopted circular cone inclined-plane self-centering, accurate positioning is reliable, fastening by interior six square bolts that pass successively cylinder blade, positioning sleeve, pulverizing cutting body, the tool diameter tolerance can reach ± and 0.05, avoid the not tight phenomenon that maybe can't dismantle of cutter clamping, guaranteed the machining accuracy of quality of fit and the part of cutter.Banded honeycomb bar after having avoided cutting off hinders the feed motion of handle of a knife; Avoided processing part winding main shaft, operating personnel and equipment have been produced threat; The smear metal that has prevented cut-out is pullled and deforms undressed part generation.
Simple in structure, easy to loading and unloading quick.The utility model will be pulverized cutting body 1, cylinder blade 2, positioning sleeve 3 by interior six square bolt combination assemblings, the constitutional detail number reduces, easy to loading and unloading fast and reliable, adopt axially interior six square bolts compression cylinder blades, both can the quick-replaceable parts, enhance productivity, guaranteed again the dynamic balancing design of cutter, good dynamic balancing makes cutter safer in High-speed machining.And the structure of having avoided adopting two tight cylinder blades of straight pin spinning on prior art honeycomb cutter and having pulverized body, not quick detachable not tight with clamping, can cause occuring the potential safety hazard that cutter flies away from.
Description of drawings
Fig. 1 is the slotting cutter organigram of the utility model High-speed machining cellular material.
Fig. 2 is the schematic diagram that Fig. 1 pulverizes cutting body 1.
In figure: 1 pulverizes cutting body, 2 cylinder blades, and 3 positioning sleeves, 4 axial dormant bolts, 5 handle of a knifes, 6 spiral chip dividing grooves, 8 back cones connect disk, 9 axial sleeve.
The specific embodiment
Consult Fig. 1-Fig. 2.The slotting cutter of High-speed machining cellular material described in figure has a pulverizing cutting body 1 that is fixedly connected with handle of a knife 5.To keep cutting edge sharp in processing, enough large anterior angle, relief angle must be arranged, and the cutting edge of cylinder blade is very thin, if increase the helical edges anterior angle, the strength decreased of cylinder blade, while cylinder blade more easily produce stress when grinding, cause the cylinder blade crackle, therefore, should consider in the formula of cylinder blade material that cylinder blade will have enough toughness and hardness, the serviceability of guarantee cutter.For the intensity that improves working (machining) efficiency and cutter guarantees that pulverizing cutting body cutting edge is enough sharp, pulverizing cutting body 1 is a cobalt high speed steel spiral cutting sword pulverizing cutting body that adopts the PM HSS material to make.Pulverizing cutting body 1 has many anterior angle angles less than the helical cutting edge of relief angle and the spiral chip dividing groove that distributes around cutting edge, namely holds the bits groove, and is that diameter is greater than the cylinder of handle of a knife 5 diameters.Be shaped with the large helix angle cutting edge and the spiral chip dividing groove 6 that tilt along generatrix direction on its face of cylinder.Spiral chip dividing groove 6 is convenient to cellular material is cut off and the fast-crushing cellular material in the axial direction, and material is flown out along the normal direction on the face of cylinder.The axial angle of the helical angle cutting edge that is formed by spiral chip dividing groove 6 can be 30～60 °, preferred 45 °.The helical edges relief angle is at least greater than 2 times of anterior angles.After pulverizing cutting body 1 major function and be radially milling cylinder blade 2 by end face and from the bottom surface, honeycomb core being cut off, subsequently by pulverize cutting body 1 axially fast cutting pulverize and cut off the surplus part of honeycomb and do not cut cylinder.The other end of pulverizing cutting body is the cylinder staight shank, in order to ensure handle of a knife, enough large chucking power and the versatility of cutter clamping is arranged, and connecting the handle of a knife 5 shank precision of pulverizing cutting body 1 is h6, and diameter is the right circular cylinder of metric size.The concrete length of shank can be according to the actual needs design of part.
Claims (9)
1. the slotting cutter of a High-speed machining cellular material, have a pulverizing cutting body that is fixedly connected with handle of a knife and connect firmly at the cylinder blade (2) of pulverizing on cutting body (1) cylinder end face, it is characterized in that, described cylinder blade (2) is a circular saw teeth cutter blade that is shaped with back cone, this back cone connect the disk axial sleeve (9) that is connected, by pulverizing cutting body (1) center stepped hole, back cone is connect round the fitting tightly at pulverizing cutting body (1) of disk (8) to be shaped with on the end face on circular cone inclined-plane, back cone inclined-plane on positioning sleeve (3) inner side end is by the inner cone on cylinder blade (2) axial sleeve (9) end face, stationary fit is in axial sleeve (9), axially dormant bolt (4) is pulverized cutting body (1) by coaxial the connecting firmly of positioning sleeve (3) center stepped hole.
2. the slotting cutter of High-speed machining cellular material as claimed in claim 1, it is characterized in that, described cylinder blade (2) is one and is shaped with disk back cone 7 and connects the be connected combination of axial sleeve (9) of disk (8) with back cone, the front end of disk sleeve is shaped with for the inner cone that compresses cylinder blade, the inside and outside face of cylinder of the sleeve of cylinder blade and the front end conical surface, three faces are integrated, and three's mating surface must be with one heart simultaneously.
3. the slotting cutter of High-speed machining cellular material as claimed in claim 1, it is characterized in that, described cylinder blade (2) is one and is shaped with disk back cone (7) and connects the be connected combination of axial sleeve (9) of disk (8) with back cone, disk back cone (7) fit to be pulverized cutting body 1 axle head circular cone inclined-plane, positioning sleeve (3) back cone inclined-plane applying axial sleeve (9) nozzle inner cone, axially dormant bolt (4) is by positioning sleeve (3) center end surface of step hole, and three one concentric fit are in pulverizing cutting body (1) ladder stepped hole.
4. the slotting cutter of High-speed machining cellular material as claimed in claim 2, is characterized in that, described pulverizing cutting body (1) is that a material is cobalt high speed steel, is shaped with the helical angle cutting edge and the spiral chip dividing groove (6) that tilt along generatrix direction on the face of cylinder.
5. the slotting cutter of High-speed machining cellular material as claimed in claim 1, is characterized in that, pulverizing cutting body (1) has many anterior angle angles to consider groove to be worth doing less than the helical cutting edge of relief angle with around the appearance that cutting edge distributes, and the helical edges relief angle is at least greater than 2 times of anterior angles.
6. the slotting cutter of High-speed machining cellular material as claimed in claim 1, is characterized in that, connecting handle of a knife (5) shank of pulverizing cutting body (1) is that diameter is the cylinder of metric size.
7. the slotting cutter of High-speed machining cellular material as claimed in claim 1, is characterized in that, the helical edges anterior angle of cylinder blade (2) is greater than the helical edges relief angle, and the helical edges relief angle is at least greater than 2 times of helical edges anterior angles.
8. the slotting cutter of High-speed machining cellular material as claimed in claim 1, is characterized in that, axially dormant bolt (4) is a bolt that is shaped with interior six sides.
9. the slotting cutter of High-speed machining cellular material as claimed in claim 1, is characterized in that, pulverizing cutting body (1) is a cobalt high speed steel spiral cutting sword pulverizing cutting body that adopts the PM HSS material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510799 CN202963585U (en) | 2012-09-29 | 2012-09-29 | End mill for machining honeycomb material with high speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510799 CN202963585U (en) | 2012-09-29 | 2012-09-29 | End mill for machining honeycomb material with high speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202963585U true CN202963585U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510799 Expired - Lifetime CN202963585U (en) | 2012-09-29 | 2012-09-29 | End mill for machining honeycomb material with high speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202963585U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203492A (en) * | 2012-09-29 | 2013-07-17 | 成都飞机工业（集团）有限责任公司 | Combined type special milling cutter for honeycomb |
| CN103439054A (en) * | 2013-08-21 | 2013-12-11 | 重庆江增船舶重工有限公司 | Blind hole impeller dynamic balancing testing device |
| CN103567519A (en) * | 2013-10-17 | 2014-02-12 | 无锡雨田精密工具有限公司 | Novel milling cutter |
| CN104308243A (en) * | 2014-10-29 | 2015-01-28 | 苏州华冲精密机械有限公司 | Conveniently-dismounted type channeling cutter device |
-
2012
- 2012-09-29 CN CN 201220510799 patent/CN202963585U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203492A (en) * | 2012-09-29 | 2013-07-17 | 成都飞机工业（集团）有限责任公司 | Combined type special milling cutter for honeycomb |
| CN103439054A (en) * | 2013-08-21 | 2013-12-11 | 重庆江增船舶重工有限公司 | Blind hole impeller dynamic balancing testing device |
| CN103439054B (en) * | 2013-08-21 | 2016-08-17 | 重庆江增船舶重工有限公司 | Blind hole impeller dynamic balance testing device |
| CN103567519A (en) * | 2013-10-17 | 2014-02-12 | 无锡雨田精密工具有限公司 | Novel milling cutter |
| CN104308243A (en) * | 2014-10-29 | 2015-01-28 | 苏州华冲精密机械有限公司 | Conveniently-dismounted type channeling cutter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |