CN104640655A - Vibration-proof structure for cutting tool - Google Patents
Vibration-proof structure for cutting tool Download PDFInfo
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- CN104640655A CN104640655A CN201280074377.0A CN201280074377A CN104640655A CN 104640655 A CN104640655 A CN 104640655A CN 201280074377 A CN201280074377 A CN 201280074377A CN 104640655 A CN104640655 A CN 104640655A
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- China
- Prior art keywords
- vibration
- cutting element
- proof structure
- tool rack
- peripheral surface
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/26—Securing milling cutters to the driving spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/04—Tool holders for a single cutting tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/026—Chucks the radial or angular position of the tool being adjustable
- B23B31/0261—Chucks the radial or angular position of the tool being adjustable for centering the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/002—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor with vibration damping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/33—Elastomers, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2250/00—Compensating adverse effects during turning, boring or drilling
- B23B2250/16—Damping of vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/33—Elastomers, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2250/00—Compensating adverse effects during milling
- B23C2250/16—Damping vibrations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Milling Processes (AREA)
Abstract
The present invention relates to a vibration-proof structure for a cutting tool, comprising: a first tool holder (100) provided with a first cylinder pocket (110) and a first inner cylinder (120); a second tool holder (200) provided with a second cylinder pocket (210) and a second inner cylinder (220) and integrally formed with a first end portion (140) and a second end portion (240); a damping member (300) provided with first and second pocket grooves (310, 320) at both end portions, first and second outer inserts (312, 322) on the outside, and first and second inner inserts (314, 324) on the inside such that the first inner cylinder (120) is inserted into the first pocket groove (310) and the second inner cylinder (220) is inserted into the second pocket groove (320) in order to dampen vibration; a first ring (410) disposed between an outer peripheral surface of the first inner cylinder (120) and an inner peripheral surface of the first pocket groove (310); and a second ring (420) disposed between an outer peripheral surface of the second inner cylinder (220) and an inner peripheral surface of the second pocket groove (320).
Description
Technical field
The present invention relates to the vibration-proof structure of cutting element, more specifically, relating to one to make to reduce vibration and processing noise when performing the machining such as Milling Process, boring processing, Drilling operation, turnery processing, improving the vibration-proof structure of the cutting element of processing stability.
Background technology
Generally speaking, lathe utilizes cutting element, carries out machining to the work material material that iron (steel) is.Due to during so performing machining, cutting element is subject to huge cutting force (cutting force), and thus the material of cutting element makes with the steel alloy that hardness is outstanding.
As everyone knows, steel alloy due to hardness outstanding, durability is remarkable, has economy, is widely used as the material of cutting element.
But steel alloy is very high due to eigentone, when being the cutting element of elongate, easily trembles because of cutting force, thus there is the problem that noise occurs.
In addition, directly carrying out in machining to work material material, there is the problem of the life-span improper shortening of the snaps of bite.The even frequent situation occurring cannot to cut because of vibration (vibration).
In the past, as the technology formed for vibrationproof object in cutting element, there will be a known patent document 1,2 described later.
Patent document 1 is the recess forming tubular in tool rack, at its cylindrical inner configuration damping mechanism, in the end of tubular, links stopper assemble with screw.The outer peripheral face of damping mechanism configures " O " type ring, and the outer peripheral face surface of damping mechanism configures separatedly with the inner peripheral surface surface of tubular.If examination effect, be provided with the instrument performing substantive machining at stopper end, vibration (or impact), from tool ends end transmission, is cancelled in damping mechanism.
But the vibration-proof structure Problems existing recorded in patent document 1 is, because tool rack and stopper are screw connecting structures, thus the distance corresponding to the screw length needed for link must be had, to this apart from corresponding, become far away from vibration source to the distance of damping mechanism, thus vibration-damping effect reduces.
Patent document 2 is configured with columnar damper at the outer peripheral face of round tube, between pipe with damper, is configured with the ring of quality of rubber materials, the vibration (or impact) making to be delivered to pipe decay by damper.
But as the works form supported by round tube, there is the problem that hardness is relatively weak in the vibration-proof structure recorded in patent document 2.
On the other hand, patent document 1,2 makes with the pivot of cutting element as benchmark, competing phase carries out the impact that acts on or vibration for rotation centerline in transverse direction (radial direction), but Problems existing is, almost reduction effect is not vibrated for the impact carrying out acting in axis (being parallel to the direction of rotation centerline) or vibration.
Therefore, even if require a kind ofly to make the length of cutting element longer also can the suppression vibrate the vibration-proof structure of (vibration).
Particularly along with the variation of machining form, to impact or direction intricately that vibration applies to cutting element acts on, such as, may transversely with axis and intricately acts on, thus in the urgent need to the counte-rplan to this.
[prior art document]
[patent document]
(patent document 1) No. 10-2009-0107974th, Korean Patent Laid (2009.10.14.)
(patent document 2) published International patent publication WO92/14947 (1992.09.03.)
Summary of the invention
Therefore, the object of the technical task that the present invention will solve is the vibration-proof structure providing a kind of cutting element, make to decay body to greatest extent near the vibration source side configuration that vibration occurs, even if the length of cutting element is longer, also more effectively can prevent from vibrating (vibration), can noise be reduced.
Another object of the present invention is to provide a kind of vibrational energy transmitted from outside that makes can more promptly pass to decay body, more promptly can make the vibration-proof structure of the cutting element of vibration attenuation.
Even if another object of the present invention is to provide a kind of direction making vibration carry out acting on for laterally acting on axial composite-rotor, the vibration-proof structure of the cutting element of this vibration also can be tackled.
Another object of the present invention be to provide a kind of in cutting element configuration decay body, make compared with vibrationproof technology in the past, even if the size of decay body is designed relatively large, the vibration-proof structure of the cutting element that the hardness of cutting element does not also reduce.
The technical task that the present invention will realize is not limited to the above-mentioned technical task mentioned, and other technical task do not mentioned is that those skilled in the art clearly can understand from following record.
Solve the scheme of problem
The vibration-proof structure being intended to the cutting element of the present invention reaching described technical task comprises: the first tool rack 100, it is formed with first recess 110 in the inner side of first main body 102, at the medial end of first recess 110, be formed with the first inner core 120 projectedly; Second tool rack 200, it is formed with second recess 210 in the inner side of second main body 202, at the medial end of second recess 210, be formed with the second inner core 220 projectedly, the first end 140 of described first main body 102 connects with the second end 240 of described second main body 202 and welds and be integrally constituted; Decay body 300, it has been recessed to form first, second groove 310,320 respectively at both ends, with first, second groove 310,320 described for benchmark, first, second outer insertion section 312,322 is formed respectively in outside, insertion section 314,324 in first, second is formed respectively in inner side, make described first inner core 120 be inserted in described first groove 310, make described second inner core 220 be inserted in described second groove 320, vibration is decayed; First ring 410, it is configured between the outer peripheral face of described first inner core 120 and the inner peripheral surface of described first groove 310, carries out shrinking and restores; And second ring 420, it is configured between the outer peripheral face of described second inner core 220 and the inner peripheral surface of described second groove 320, carries out shrinking and restores.
In addition, the described first ring 410 of the vibration-proof structure of cutting element of the present invention can be configured at described first inner core 120 inner peripheral surface and described first between insertion section 314.
In addition, described second ring 420 of the vibration-proof structure of cutting element of the present invention can be configured at described second inner core 220 inner peripheral surface and described second between insertion section 324.
In addition, in the inner peripheral surface and described first that the described first ring 410 of the vibration-proof structure of cutting element of the present invention can also be configured at described first inner core 120 between insertion section 314,
In the inner peripheral surface and described second that described second ring 420 can also be configured at described second inner core 220 between insertion section 324.
In addition, the vibration-proof structure of cutting element of the present invention can be, on the inner peripheral surface of described first inner core 120, with described first in insertion section 314 be formed with the first wall recess 122 separatedly; On the inner peripheral surface of described second inner core 220, with described second in insertion section 324 be formed with the second wall recess 222 separatedly; Described decay body 300 relative to first, second tool rack 100,200 phase reversal described mobile time do not disturb.
In addition, the vibration-proof structure of cutting element of the present invention can be, in described first, the end of insertion section 314 is formed more projectedly than the end of described first outer insertion section 312.
In addition, the vibration-proof structure of cutting element of the present invention can be, in the edge of described first end 140 inner peripheral surface and the edge of described the second end 240 inner peripheral surface, side is formed with step, is formed with the boss being contained in described step on another side; When described first tool rack 100 is assembled with described second tool rack 200, improve the concentricity between described first tool rack 100 with described second tool rack 200 and align.
In addition, the vibration-proof structure of cutting element of the present invention can be, the central authorities of first, second tool rack 100,200 described and described decay body 300 be formed respectively first, second, the 3rd hole 130,230,330, by described first, second, the 3rd hole 130,230,330, cutting oil passes through, by means of the pressure of described cutting oil, described decay body 300, in the internal float of first, second recess 110,210 described, forms oil film on the surface that first, second inner core 120,220 described and first, second groove 310,320 described connect.
In addition, the vibration-proof structure of cutting element of the present invention can be, the ratio of the length L2 of the tool length L1 that described first main body 102 and described second main body 202 engage and formed and described decay body 300 is 1:0.3 ~ 0.7.
In addition, the vibration-proof structure of cutting element of the present invention can be, the ratio of the external diameter of described first main body 102 and the internal diameter of described first recess 110 is 1:0.4 ~ 0.8.
In addition, the vibration-proof structure of cutting element of the present invention can be, the ratio of the external diameter of described second main body 202 and the internal diameter of described second recess 210 is 1:0.4 ~ 0.8.
Invention effect
The vibration-proof structure of the cutting element of the present invention of formation described above makes upper and lower partition tools frame and forms, decay body is equipped with in the inside of the tool rack of segmentation, the tool rack of segmentation is integrally constituted by means of welding, thus can to greatest extent near become vibration source because of side configuration decay body, thus, even if the length of cutting element is longer, also more effectively can prevents from vibrating (vibration), can noise be reduced.
In addition, the vibration-proof structure of cutting element of the present invention makes a part for tool rack terminate near decay side, body center, thus the vibrational energy transmitted from outside can more promptly be delivered to decay body side from tool rack, thus make it possible to more promptly prevent vibration.
In addition, the vibration-proof structure of cutting element of the present invention is for benchmark with the direction of rotation of cutting element, decay body can configure to transverse direction and play relative to rotary middle spindle, even if thus the direction that vibration is carried out acting on is for laterally acting on axial composite-rotor, also can tackle this vibration.
In addition, the vibration-proof structure of cutting element of the present invention makes the tool rack to being separated from cutting element weld, one is formed, configuration decay body in tool rack, thus compared with vibrationproof technology in the past, even if the size of decay body is designed relatively large, also can maintain hardness by means of tool rack, thus make the hardness of cutting element not reduce.
In addition, the vibration-proof structure of cutting element of the present invention by preventing rapidly vibration, thus can make the intrinsic vibration of cutting element realize minimizing, and boosts productivity by means of machining.
In addition, the vibration-proof structure of cutting element of the present invention by preventing vibration, thus can improve the surface roughness on the surface of machining, prevents the life-span of cutting element and the improper shortening of main shaft life-span.
In addition, the vibration-proof structure of cutting element of the present invention by preventing rapidly vibration, thus can improve processing stability, realizes economy, high-efficient cutting processing.
Accompanying drawing explanation
Fig. 1 to Fig. 3 is the stereogram of the vibration-proof structure of cutting element for illustration of one embodiment of the invention, exploded view and profile.
Fig. 4 to Fig. 6 is the figure of the vibration-proof structure of cutting element for illustration of another embodiment of the present invention.
Fig. 7 and Fig. 8 is the stereogram of the vibration-proof structure of cutting element for illustration of further embodiment of this invention, exploded view and profile.
Fig. 9 is the chart of the action effect of the vibration-proof structure of cutting element for illustration of the embodiment of the present invention, and analytical table illustrates the resonant frequency of embodiment and comparative example.
Figure 10 and Figure 11 is the chart of the action effect of the vibration-proof structure of cutting element for illustration of the embodiment of the present invention, indicates embodiment and compares with the die-away time of comparative example.
Figure 12 and Figure 14 is the chart of the action effect of the vibration-proof structure of cutting element for illustration of the embodiment of the present invention, diversely changes machining condition, measures the dynamic vibration of embodiment and comparative example and indicates result.
Symbol description
100, 200-first, second tool rack, 102, 202-first, second main body, 110, 210-first, second recess, 120, 220-first, second inner core, 122, 222-first, second wall recess, 124, 224-first, second ring groove, 130, 230-first, second hole, 140, 240-first, the second end, 142, 242-first, second alignment guide portion, 300-decays body, 310, 320-first, second groove, 312, 322-first, second outer insertion section, 314, 324-first, insertion section in second, 330-the 3rd hole, 410, 420-first, second ring, 500-weld part.
Detailed description of the invention
If with reference to and the embodiment that is together described in detail later of accompanying drawing, advantage of the present invention and feature and reach its method will be clear and definite.
In description in the whole text, identical reference marks censures identical inscape.
On the other hand, the term that term described later sets as the function considered in the present invention, it can be different because of the intention of the producer or convention, and thus its definition should be made based on this description in the whole text content.
First, the dependency relation of vibration and cutting element is described.
All objects all have eigentone (Natural Frequency), if eigentone removes external force after applying external force to this object, then object continues vibration, and the speed now vibrated is called " eigentone ".
The material of cutting element is owing to using the steel alloy that hardness is very strong, thus eigentone very high (greatly), and this has the condition easily vibrating (vibration) for external force (cutting force).
The vibration-proof structure of the cutting element of one embodiment of the invention makes to be equipped with damping mechanism in cutting element, reduces the eigentone of cutting element, under the condition easily vibration occurring, can suppress vibration.
Referring to Fig. 1 to Fig. 3, the vibration-proof structure of the cutting element of one embodiment of the invention is described.
As shown in the figure, Fig. 1 to Fig. 3 is the stereogram of the vibration-proof structure of cutting element for illustration of one embodiment of the invention, exploded view and profile.
As shown in Figure 1 to Figure 3, the vibration-proof structure of the cutting element of one embodiment of the invention configures body 300 of decaying between the first tool rack 100 and the second tool rack 200, welds (weld part is with reference to 500) and realize integrated to the first tool rack 100 with the end of the second tool rack 200.
Described decay body 300 can be the high density steel of density higher than first, second tool rack 100,200.Such as, body 300 of decaying can use the high density material of proportion more than 16.
First tool rack 100 can be the part corresponding to the pad in cutting element, and the second tool rack 200 can be the part corresponding to the machining portion performing machining.
First tool rack 100 is formed with first recess 110 in the inner side of first main body 102, protrudes be formed with the first inner core 120 at the medial end of first recess 110.
Be formed with the first wall recess 122 at the inner peripheral surface of the first inner core 120, be formed with first ring groove 124 at the outer peripheral face of the first inner core 120.
Second tool rack 200 is formed with second recess 210 in the inner side of second main body 202, protrudes be formed with the second inner core 220 at the medial end of second recess 210.
Be formed with the second wall recess 222 at the inner peripheral surface of the second inner core 220, be formed with the second ring groove 224 at the outer peripheral face of the second inner core 220.
On the other hand, the inner peripheral surface of first recess 110 can be identical or reciprocity size with the inner peripheral surface of second recess 210.
Decay body 300 is formed with drum, and the drum having first, second groove 310,320 to cave in respectively at both ends is formed.That is, the end of decay body 300 is with first, second groove 310,320 for benchmark, is formed with first, second outer insertion section 312,322, is formed with insertion section 314,324 in first, second in inner side in outside.
On the other hand, in first, second ring groove 124,224 described, first, second ring 410,420 is added respectively.First, second ring 410,420 can for having flexible elastic deformation material, if so that external force acts on, then restored after deformation.Such as, the material of first, second ring 410,420 can be quality of rubber materials or the synthetic resin with retractility.
In addition, first, second ring groove 124,224 described and first, second ring 410,420 described can be equipped with multiple, and first, second ring groove 124,224 plays the effect of permutation and collecting, and first, second ring 410,420 can not be departed from.
The both ends of described decay body 300 are inserted in first recess 110 and second recess 210 respectively.On the other hand, in the first groove 310, be inserted with the first inner core 120, in the second groove 320, be inserted with the second inner core 220.
In addition, in first, insertion section 314 is inserted in the first wall recess 122, and in second, insertion section 324 is inserted in the second wall recess 222.
That is, if examination decay body 300 is assembled in the form of first, second tool rack 100,200, as shown in Figure 3, the end of decay body 300 is formed with first, second tool rack 100,200 with form overlapping in a zigzag.
On the other hand, first, second ring 410,420 configures connect with the inner peripheral surface of first, second groove 310,320.Thus, due to first, second tool rack 100,200 with first, second ring 410,420 for medium is configured, therefore decay body 300 can be freely travelling.
On the other hand, the welding edges of the first tool rack 100 and the second tool rack 200, forms weld part 500, thus the first tool rack 100 and the second tool rack 200 one are formed.
On the other hand, between the outer peripheral face and the inner peripheral surface of first, second recess 110,210 of decay body 300, interval is formed with.Interval between decay body 300 and first, second recess 110,210 can be 0.5mm ~ 5mm.
Decay body 300 relative to first, second tool rack 100,200 vibration and embody relative motion, rock with phase reversal because of the vibration of first, second tool rack 100,200.
Now, if the interval between decay body 300 and first, second recess 110,210 is more than 0.5mm, then can become when body 300 of decaying rocks, the scope that decay body 300 does not collide with first, second tool rack 100,200.On the contrary, if the interval between decay body 300 and first, second recess 110,210 is below 5mm, then can the outer peripheral face size of decay body 300 be set to maximum, thus or can be provided as maximum the Quality Design of decay body 300.
In addition, in first, second, interval is formed with between the outer peripheral face of insertion section 314,324 and the inner peripheral surface of first, second wall recess 122,222.That is, described interval can be the vibration space that body 300 of decaying can move about from outside transmission.
On the other hand, when first, second tool rack 100,200 engages, the distance of the medial end of medial end to the second recess 210 of first recess 110 provides with can being greater than decay body 300 length.In addition, the degree of depth of first, second wall recess 122,222 is greater than providing to heavens of insertion section 314,324 in first, second.Thus ensure that the space that decay body 300 can alongst move about.
On the other hand, at the center of first, second tool rack 100,200, first, second hole 130,230 can be formed with respectively throughly, the 3rd hole 330 can be formed with at the center of decay body 300.By first, second, the 3rd hole 130,230,330, cutting oil or cold oil can flow.Cutting oil or cold oil can be obtained by the machine tool chief axis installed additional for cutting element and provide, and this cutting oil or cold oil can be supplied to cutting tip and be cut material.
On the other hand, described cutting oil or cold oil have pressure and flow, and now, act on first, second wall recess 122,222 and decay body 300 pressure uniform.This pressure can play the effect that decay body 300 is floated, and the surface connected with first, second groove 310,320 at first, second inner core 120,220 particularly can be made to form oil film.Thus oil film makes decay body 300 more freely can move about relative to first, second tool rack 100,200, can improve attenuating further.
Again on the one hand, the end surface shape of first, second inner core 120,220 described can be semi-circular shape, has curvature.Thus, can the area that first, second tool rack 100,200 connects with decay body 300 be reduced to minimum.Along with minimizing of contact area, can reduce frictional resistance when decay body 300 moves about further, decay body 300 can more freely move about, and can improve attenuating further.
In addition, in the end of first main body 102, the form that can tilt with end surface shape is formed with first end 140, and in the end of second main body 202, the form that can tilt with end surface shape is formed with the second end 240.Thus make when implementing welding, welding can realize more smoothly.
On the other hand, first, second alignment guide portion 142,242 can be formed with on the limit of first, second end 140,240 inner peripheral surface, concentricity or linearity, when alignment first tool rack 100 is implemented to weld with the second tool rack 200, can improve between the first tool rack 100 and the second tool rack 200 in first, second alignment guide portion 142,242.
With regard to first, second alignment guide portion 142,242, when observing end surface shape, to be somely recessed to form with step, another is corresponding to step, can be formed with boss, and step and boss are assembled, guide when the first tool rack 100 and the second tool rack 200 are assembled, make alignment.
On the other hand, as shown in Figure 3, the tool length L1 of cutting element can be 1:0.3 ~ 0.7 with the ratio of decay body 300 length L2.If carry out expansion to illustrate this, if the length L2 of decay body 300 is more than 30% relative to tool length L1, then embody vibrationproof performance well.In addition, if the length L2 of decay body 300 is less than 70% relative to tool length L1, then the hardness performance of cutting element is good.
That is, as mentioned above, the length L2 of decay body 300 relative to tool length L1 be 30% to 70% scope in, the hardness performance of vibrationproof performance and cutting element can obtain the best and embody.
If carry out expansion explanation to described tool length L1, cutting element is formed with the pad being installed in machine tool chief axis, being the interval to cutting element lower end on the downside of pad, can be the interval length altogether of second main body 202 of first main body 102 and the second tool rack 200 formed on the first tool rack 100.
In addition, the ratio of the external diameter of first main body 102 and the internal diameter of first recess 110 can be 1:0.4 ~ 0.8.In addition, the ratio of the external diameter of second main body 202 and the internal diameter of second recess 210 can be 1:0.4 ~ 0.8.Illustrate if carry out expansion to this, if the inner peripheral surface of first, second recess 110,210 reaches the ratio of more than 40% compared to the outer peripheral face of first, second main body 102,202, then embody vibrationproof performance well.In addition, if the inner peripheral surface of first, second recess 110,210 reaches the ratio of less than 80% compared to the outer peripheral face of first, second main body 102,202, then the hardness performance of cutting element is good.
That is, as mentioned above, be in the scope of 40% to 80% at the inner peripheral surface of first, second recess 110,210 compared to the outer peripheral face of first, second main body 102,202, the hardness performance of vibrationproof performance and cutting element can obtain best embodiment.
Fig. 4 to Fig. 6 is the figure of the vibration-proof structure of cutting element for illustration of another embodiment of the present invention.
Embodiment illustrated in fig. 4 as another embodiment of the present invention, be in the first tool rack 100, further expansion the first wall recess 122 is provided larger, provide larger decay body 300 first in insertion section 314.
That is, outer insertion section 312, insertion section 314 to the first is formed projectedly in first, adds the quality m of decay body 300, thus improves vibration-damping effect further.
Fig. 1 to Fig. 4 is the form that the cutting element of the vibration-proof structure applying the embodiment of the present invention carries out rotating, but also can be applied under the static state of the instrument as turnery processing, and work material material carries out the processing of the form of movement.Be explained with reference to accompanying drawing Fig. 5 and Fig. 6.
Fig. 5 illustrates another embodiment of the present invention, illustrates the example that vibration-proof structure can be applied to the cutting element used in turnery processing.
That is, first, second tool rack 100,200 is the tool rack of turnery processing cutting element, in the inside of first, second tool rack 100,200, possesses the decay body 300 that freely can move about by means of first, second ring 410,420.
During execution turnery processing, transmit cutting force, this cutting force induced vibration from cutting tip, but vibration passing gives decay body 300, be particularly intensively directly passed to the central side of decay body 300, thus attenuating improves further.
Fig. 6 indicates the embodiment of the cutting element applying the another vibration-proof structure of the present invention, indicates in the cutting element embodiment applying vibration-proof structure shown in Fig. 5, and the quality m expanding decay body 300 further carries out the embodiment applied.
That is, first, second tool rack 100,200 is the tool rack of turnery processing cutting element, in the inside of first, second tool rack 100,200, possesses the decay body 300 that freely can move about by means of first, second ring 410,420.Cutting element embodiment particularly shown in Fig. 6, in the first tool rack 100, larger (length) form the first wall recess 122, in first, outer insertion section 312, insertion section 314 to the first is formed projectedly.
Therefore, the cutting element of the vibration-proof structure of the application embodiment of the present invention shown in Fig. 6 is provided with the quality m of decay body 300 larger, thus further increases vibration-damping effect.
Fig. 7 indicates the embodiment of the cutting element applying the another vibration-proof structure of the present invention, is in the embodiment of the cutting element of vibration-proof structure shown in application drawing 1 to Fig. 3, changes the example of the allocation position of first, second ring 410,420.
As shown in Figure 7, the inner peripheral surface of the first inner core 120 is formed with first ring groove 124.In addition, the inner peripheral surface of the second inner core 220 is formed with the second ring groove 224.
In first, second ring groove 124,224 described, be separately installed with first, second ring 410,420.
That is, first, second ring 410,420 described is configured at first, second inner core 120,220 and in first, second between insertion section 314,324.
Fig. 8 indicates the embodiment of the cutting element applying the another vibration-proof structure of the present invention, is in the cutting element embodiment applying vibration-proof structure shown in Fig. 1 to Fig. 3, changes the example of the allocation position of first, second ring 410,420.
As shown in Figure 8, the inner peripheral surface and outer peripheral face of the first inner core 120 can be formed with first ring groove 124.In addition, the inner peripheral surface and outer peripheral face of the second inner core 220 can be formed with the second ring groove 224.
On the other hand, the inner peripheral surface and outer peripheral face of first, second inner core 120,220 are formed respectively first, second ring groove 124,224 time, at the groove that inner peripheral surface side is formed with the groove to be formed in outer peripheral face side from end view time, can with the interlaced position formation of zigzag state.Thus hardness can be prevented low.
In first, second ring groove 124,224 described, be separately installed with first, second ring 410,420.
Namely, first, second ring 410,420 described can be configured between first, second inner core 120,220 and first, second outer insertion section 312,322, in addition, first, second inner core 120,220 can be configured at and in first, second between insertion section 314,324.
Again on the one hand, the vibration-proof structure of the cutting element of the embodiment of the present invention, describe the example first, second ring 410,420 being configured at the first tool rack 100 and the second tool rack 200 with symmetrical shape, but be not defined in this, such as, in the first tool rack 100, in the inner peripheral surface side or outer peripheral face side of the first inner core 120, only at certain side configuration first ring 410, in the second tool rack 200, can all configure the second ring 420 in the inner peripheral surface of the second inner core 220 and outer peripheral face.
Again on the one hand, in the first tool rack 100, can all configure first ring 410 on the inner peripheral surface of the first inner core 120 and outer peripheral face, in the second tool rack 200, the second ring 420 can be configured in certain side only in the inner peripheral surface and outer peripheral face of the second inner core 220.
As mentioned above, first, second ring 410,420 or duplex configuration can also be configured additionally, thus decay body 300 can be made directly not contact with the first tool rack 100 or the second tool rack 200.
As mentioned above, the vibration-proof structure of the cutting element of the embodiment of the present invention welds with the second tool rack 200 the first tool rack 100 and links, thus improve design freedom, inner space (with reference to first, second recess) can be guaranteed larger, can formation be simplified.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention has the convenience that can design/improve decay body 300 size larger, freely can arrange the appropriate location that decay body 300 configures with first, second ring 410,420.If carry out expansion explanation to appropriate location, due to the heat occurred at execution weld period, there is the worry that first, second ring 410,420 can be out of shape, but, by guaranteeing first, second recess 110,210 as inner space larger, first, second ring 410,420 can be configured in the position not being subject to welding heat source impact.
On the other hand, the welding implemented in the present invention can be carried out in low-temperature welding mode, thus can prevent the damage of first, second ring 410,420 caused because of welding heat source.
On the other hand, increase corresponding to decay body 300 size, decay body 300, relative to the phase place of the vibration generated in the first tool rack 100 or the second tool rack 200, rocks with phase reversal, can effectively make the vibration of cutting element main body reduce.
Below, for the cutting element vibration attenuation action effect of vibration-proof structure of cutting element applying the embodiment of the present invention, with reference to accompanying drawing Fig. 9 to Figure 14, illustrates and utilize FRF to analyze and the result of vibration measuring equipment acquisition.
The goods utilized in comparative example are that the goods with embodiment of the present invention same apparent size are used as comparison other.
Accompanying drawing Fig. 9 as illustrate the embodiment of the present invention cutting element vibration-proof structure action effect needed for chart, be measure resonant frequency and indicate the chart of FRF frequency analysis.
Known as shown in Figure 9, with regard to applying the cutting element of the vibration-proof structure of the embodiment of the present invention, even if the displacement of resonant frequency changes, the displacement of acceleration is also very little on the whole, but on the contrary, with regard to comparative example, resonant frequency between given zone, such as, in 2,000Hz ~ 2, in the scope of 500Hz, the peak value that formation acceleration sharply raises also changes.
That is, known, apply the cutting element of the vibration-proof structure of the embodiment of the present invention, even if it is also stable that resonant frequency significantly changes.
Accompanying drawing Figure 10 and Figure 11 is the chart of the action effect of the vibration-proof structure of cutting element for illustration of the embodiment of the present invention, illustrates embodiment and compares with the die-away time of comparative example.More specifically, Figure 10 is comparative example, and Figure 11 is embodiments of the invention.
From Figure 10 and Figure 11, there is larger difference in the time reaching stabilisation from impacting moment to this impact occurred to loss.
With regard to comparative example, apply roughly+120m/s
2~-180m/s
2the impact of scope and after vibrating, until required time roughly needs 0.04 second when lossing.On the contrary, with regard to embodiments of the invention, apply roughly+100m/s
2~-160m/s
2the impact of scope and after vibrating, until required time roughly needs 0.01 second when lossing.That is, the known cutting element applying the embodiment of the present invention is compared with applying the cutting element of comparative example (conventional art), and the time needed for vibration attenuation significantly shortens.
Afterwards, can with in the present Cutting and machining conditions of graphics table, the dependency relation of process velocity VC and real time acceleration RMS, illustration effect, this is described with reference to accompanying drawing Figure 12 and Figure 14.
Accompanying drawing Figure 12 and Figure 14, as the chart of the action effect of the vibration-proof structure of the cutting element for illustration of the embodiment of the present invention, is diversely change machining condition, and the dynamic vibration implementing embodiment and comparative example is tested, real time acceleration (m/s
2/ N) numerical value change be mean value RMS and represent chart.
In chart shown in Figure 12, machining condition is application cutter: Φ 63 plain milling cutter, blade number: 3 swords, and Fz (every sword feeding amount: 0.05 (mm/tooth), cut: 50mm, and Z axis is cut: 3mm by side.
In chart shown in Figure 13, machining condition is application cutter: Φ 63 plain milling cutter, blade number: 3 swords, and Fz (every sword feeding amount: 0.1 (mm/tooth), cut: 50mm, and Z axis is cut: 3mm by side.
In chart shown in Figure 14, machining condition is application cutter: Φ 63 plain milling cutter, blade number: 3 swords, and Fz (every sword feeding amount: 0.2 (mm/tooth), cut: 50mm, and Z axis is cut: 3mm by side.
If chart is known shown in examination Figure 12 and Figure 14, embodiments of the invention are compared with comparative example, and vibration occurs relatively few.It can thus be appreciated that, the antihunt action excellent of the vibration-proof structure of the embodiment of the present invention.
As mentioned above, the vibration-proof structure of the cutting element of the embodiment of the present invention makes to split formation tool rack up and down, decay body 300 is possessed in the inside of first, second tool rack 100,200 of segmentation, first, second tool rack 100,200 of segmentation is integrally formed by means of welding, thus can to greatest extent near become vibration source because of side configuration decay body 300, thus, even if the length of cutting element is longer, also more effectively can prevent from vibrating (vibration), can noise be reduced.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention makes a part for first, second tool rack 100,200 terminate near decay side, body 300 center, thus the vibrational energy transmitted from outside can more promptly be delivered to decay body 300 side from first, second tool rack 100,200, thus make it possible to more promptly prevent vibration.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention is for benchmark with the direction of rotation of cutting element, decay body 300 to transverse direction and axially movably can configure relative to rotary middle spindle, even if thus the direction that vibration is carried out acting on is for laterally acting on axial composite-rotor, also can prevent from tackling this vibration.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention makes first, second tool rack 100,200 to being separated from cutting element weld, one is formed, configuration decay body 300 in tool rack, thus compared with vibrationproof technology in the past, even if the size of decay body 300 is designed relatively large, also can maintain hardness by means of tool rack, thus, while making the hardness of cutting element not reduce, be expected to obtain good vibration-isolating effect.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention prevents rapidly vibration, thus the intrinsic vibration of cutting element can be made to realize minimizing, and can boost productivity by means of machining.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention improves the surface smoothness on the surface of machining by preventing from vibrating, can prevent the life-span of cutting element and the improper shortening of main shaft life-span.
In addition, the vibration-proof structure of the cutting element of the embodiment of the present invention promptly prevents vibration, thus can improve processing stability, realizes economy, high-efficient cutting processing.
Above with reference to accompanying drawing, describe embodiments of the invention, but those skilled in the art are appreciated that the present invention does not change its technological thought or necessary characteristic, can implement with other concrete form.
Therefore, the embodiment more than described is interpreted as just example and non-limiting in all respects, scope of the present invention is represented by claims described later, and all changes of deriving from the meaning of claims and scope and its equivalent concepts or the form of distortion should be interpreted as being included in scope of the present invention.
Industrial utilizes possibility
The vibration-proof structure of cutting element of the present invention may be used for preventing when performing machining because of vibration that cutting force causes.
Claims (11)
1. a vibration-proof structure for cutting element, is characterized in that, comprising:
First tool rack (100), it is formed with first recess (110) in the inner side of first main body (102), at the medial end of first recess (110), be formed with the first inner core (120) projectedly;
Second tool rack (200), it is formed with second recess (210) in the inner side of second main body (202), at the medial end of second recess (210), be formed with the second inner core (220) projectedly, the first end (140) of described first main body (102) connects with the second end (240) of described second main body (202) and welds and be integrally constituted;
Decay body (300), it has been recessed to form first, second groove (310,320) respectively at both ends, with first, second groove described (310,320) for benchmark, first, second outer insertion section (312,322) is formed respectively in outside, insertion section in first, second (314,324) is formed respectively in inner side, described first inner core (120) is made to be inserted in described first groove (310), make described second inner core (220) be inserted in described second groove (320), vibration is decayed;
First ring (410), between its outer peripheral face being configured at described first inner core (120) and the inner peripheral surface of described first groove (310), carries out shrinking and restores; And
Second ring (420), between its outer peripheral face being configured at described second inner core (220) and the inner peripheral surface of described second groove (320), carries out shrinking and restores.
2. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
In the inner peripheral surface and described first that described first ring (410) is configured at described first inner core (120) between insertion section (314).
3. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
In the inner peripheral surface and described second that described second ring (420) is configured at described second inner core (220) between insertion section (324).
4. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
In the inner peripheral surface and described first that described first ring (410) is also configured at described first inner core (120) between insertion section (314);
In the inner peripheral surface and described second that described second ring (420) is also configured at described second inner core (220) between insertion section (324).
5. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
On the inner peripheral surface of described first inner core (120), with described first in insertion section (314) be formed with the first wall recess (122) separatedly;
On the inner peripheral surface of described second inner core (220), with described second in insertion section (324) be formed with the second wall recess (222) separatedly;
Described decay body (300) is not disturbed when mobile relative to first, second tool rack described (100,200) phase reversal ground.
6. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
In described first, the end of insertion section (314) is formed more projectedly than the end of described first outer insertion section (312).
7. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
In the edge of the edge of described first end (140) inner peripheral surface and described the second end (240) inner peripheral surface, side is formed with step, is formed with the boss being contained in described step on another side;
When described first tool rack (100) is assembled with described second tool rack (200), improve the concentricity between described first tool rack (100) with described second tool rack (200) and align.
8. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
The central authorities of first, second tool rack described (100,200) and described decay body (300) be formed respectively first, second, the 3rd hole (130,230,330), by described first, second, the 3rd hole (130,230,330), cutting oil passes through, by means of the pressure of described cutting oil, described decay body (300), in the internal float of first, second recess described (110,210), forms oil film on the surface that first, second inner core described (120,220) and first, second groove described (310,320) connect.
9. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
The tool length (L1) that described first main body (102) and described second main body (202) engage and formed is 1:0.3 ~ 0.7 with the ratio of the length (L2) of described decay body (300).
10. the vibration-proof structure of cutting element according to claim 1, is characterized in that,
The ratio of the external diameter of described first main body (102) and the internal diameter of described first recess (110) is 1:0.4 ~ 0.8.
The vibration-proof structure of 11. cutting elements according to claim 1, is characterized in that,
The ratio of the external diameter of described second main body (202) and the internal diameter of described second recess (210) is 1:0.4 ~ 0.8.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2012-0072808 | 2012-07-04 | ||
| KR1020120072808A KR101332467B1 (en) | 2012-07-04 | 2012-07-04 | Anti-vibration structure of cutting tool |
| PCT/KR2012/009053 WO2014007435A1 (en) | 2012-07-04 | 2012-10-31 | Vibration-proof structure for cutting tool |
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| Publication Number | Publication Date |
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| CN104640655A true CN104640655A (en) | 2015-05-20 |
| CN104640655B CN104640655B (en) | 2016-09-14 |
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| CN201280074377.0A Active CN104640655B (en) | 2012-07-04 | 2012-10-31 | The vibration-proof structure of cutting element |
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| Country | Link |
|---|---|
| KR (1) | KR101332467B1 (en) |
| CN (1) | CN104640655B (en) |
| WO (1) | WO2014007435A1 (en) |
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| CN106239246A (en) * | 2016-08-13 | 2016-12-21 | 哈尔滨理工大学 | The electric current of adjustable damping and rigidity becomes vibration damping to be pressed down and quivers handle of a knife and vibration damping presses down method of quivering |
| CN111770804A (en) * | 2018-02-28 | 2020-10-13 | Maq股份公司 | Mass damper and cutting tool |
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| KR101535566B1 (en) * | 2013-12-30 | 2015-07-10 | 주식회사 다인정공 | Holder for fixing cutting tool |
| US10105768B2 (en) * | 2016-07-05 | 2018-10-23 | Ching-Ting Chen | Cutter holder with vibration resistant structure |
| WO2018044216A1 (en) | 2016-08-31 | 2018-03-08 | Maq Ab | Rotatable assemblies, machining bar assemblies and methods therefor |
| KR101825741B1 (en) | 2017-11-03 | 2018-02-05 | 이상철 | Machining method for thin cylinder production |
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Also Published As
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| CN104640655B (en) | 2016-09-14 |
| KR101332467B1 (en) | 2013-11-25 |
| WO2014007435A1 (en) | 2014-01-09 |
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