CN103071855B - Circular saw blade - Google Patents
Circular saw blade Download PDFInfo
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- CN103071855B CN103071855B CN201310060970.6A CN201310060970A CN103071855B CN 103071855 B CN103071855 B CN 103071855B CN 201310060970 A CN201310060970 A CN 201310060970A CN 103071855 B CN103071855 B CN 103071855B
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Abstract
The invention relates to a circular saw blade. The circular saw blade comprises a round plate-shaped circular saw body and a plurality of knife teeth which are arranged at the periphery of the circular saw body. The circular saw blade is characterized in that the knife teeth comprise long knife teeth and short knife teeth; the length of the side centripetal lines of the long knife teeth is more than or equal to 4mm; the length of the side centripetal lines of the short knife teeth is less than or equal to 4mm; and the number of the long knife teeth takes up 2 to 15 percent of the total number of the knife teeth and is more than 2. According to the circular saw blade, due to the adoption of the long knife teeth, the size of the wave texture of the cross section of a machined material, which is caused by the vibration of a rotating shaft, can be reduced, and due to the adoption of the structure that the relatively cheap short knife teeth and the relatively costly long knife teeth are combined and the number of the long knife teeth takes up 2 to 15 percent of the total number of the knife teeth, the size of the wave texture of the cross section of the machined material can be reduced to the effect the same as or similar to the cutting state which is achieved when all the knife teeth adopt the long knife teeth. Due to the structure of the knife teeth, even the side surface of the circular saw blade is vibrated, the size of the wave texture of the cross section of the machined material can be greatly reduced and the circular saw blade is low in cost.
Description
Technical field
The present invention relates to a kind of cutting tool, for cutting timber, wood based panel, resin, material, the metal of pottery series and the composite being formed by these materials, and can process the saw blade of groove.
Background technology
Saw blade, as a kind of cutting tool, comprises discoideus annular saw body and a plurality of cutters tooth of being located at annular saw body periphery.The material of cutter tooth is generally superhard alloy, or the carbide alloy of polycrystalline diamond for example, and surface scribbles one deck coating.On most cutters tooth, be also provided with the anterior angle inclination angle, the Yan Jiao that adapt with machined material.Saw blade is installed on processing unit (plant), by rotary cutting, carries out materials processing.Being caused by a variety of causes of ripple glaze on machined material section, such as, the angle at centripetal angle, side, adds the vibration of cutter tooth in man-hour, and the rigidity of annular saw body.No. 3170498 communique of Japan Patent discloses a kind of saw blade, for the surface roughness of machined material section is diminished, just can demonstrate side and have special shape from cutter tooth.And the vibration of aforementioned cutter tooth is normally arranged on axle the vibration with ring flange contact-making surface from saw blade, or the vibration occurring due to the reason rotating shaft of processing unit (plant) during rotation.Especially the processing unit (plant) adopting in some emerging nations, the vibration of the rotating shaft of saw blade or the contact-making surface of ring flange, major part be often rotate a circle vibration large place just there will be once, at the place, side of saw blade, produce very large vibration, therefore will cause the large situation of ripple glaze of machined material section.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, even if provide a kind of rotating shaft to vibrate, section rugosity also can control to very little saw blade.
For achieving the above object, the technical solution used in the present invention is: a kind of saw blade, comprise discoideus annular saw body and a plurality of cutters tooth of being located at described annular saw body periphery, it is characterized in that: described cutter tooth comprises rimmer knife tooth and short sword tooth, the centripetal line length in side of described rimmer knife tooth is more than or equal to 4mm, the centripetal line length in side of described short sword tooth is less than 4mm, and the quantity of described rimmer knife tooth accounts for the 2-15% of described cutter tooth sum, and is more than 2.
In a preferred embodiment of the present invention, further comprise that described rimmer knife tooth has that to take described annular saw body radius be benchmark, angle is the centripetal angle, side of 0 °-1.0 °.
In a preferred embodiment of the present invention, further comprise that the centripetal line length in side of arbitrary described short sword tooth is 1-2mm.
The invention solves the defect existing in background technology, saw blade of the present invention, the ripple glaze that described rimmer knife tooth can make rotating shaft vibrate the machined material section causing diminishes, and relatively inexpensive short sword tooth is arranged with relative expensive rimmer knife tooth combination, the quantity that is specially rimmer knife tooth accounts for the 2-15% of cutter tooth sum, makes the ripple glaze of machined material section be reduced to the same or analogous effect of cut state that all adopts rimmer knife tooth with whole cutters tooth.In other words, only with the rimmer knife tooth that accounts for whole cutter tooth 2-15%, just can reach the effect that professional can not expect.Such saw blade cutter tooth forms, even if rotating shaft or ring flange contact-making surface vibrate, and then causes saw blade side to vibrate, and also can make the ripple glaze of machined material section reduce greatly and saw blade lower cost for material.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the plane of the saw blade of the invention process form 1;
Fig. 2 is the enlarged diagram of the II portion of Fig. 1;
Fig. 3 is III-III line sectional drawing of Fig. 1;
Fig. 4 is the enlarged diagram of the IV portion of Fig. 3;
Fig. 5 is V-V line sectional drawing of Fig. 1;
Fig. 6 is the enlarged diagram of the VI portion of Fig. 5;
Fig. 7 is the cooked mode figure that uses saw blade of the present invention to carry out materials processing;
Fig. 8 is the ideograph that the cutter tooth side of Fig. 7 VIII portion vibrates relation between length and section ripple glaze;
Fig. 9 is that centripetal angle, side is the centripetal line length in its side of rimmer knife tooth of 1 ° while changing, the graph of a relation between the speed of sending into of machined material and the ripple glaze amount of machined material section;
Figure 10 is that centripetal angle, side is the centripetal line length in its side of rimmer knife tooth of 0.5 ° while changing, the graph of a relation between the speed of sending into of machined material and the ripple glaze amount of machined material section;
Figure 11 is while using saw blade rapidoprint of the present invention, the graph of a relation of the ripple glaze amount of cutter tooth side vibration length and machined material section;
Figure 12 is the rimmer knife toothing schematic diagram of the saw blade of example 4;
Figure 13 is the short sword toothing schematic diagram of the saw blade of example 4;
In figure: 10, saw blade, 12, annular saw body, 14, cutter tooth, 16, embedded hole, the thickness of U1, annular saw body, 20, cutter tooth installation portion, 22, apex, Fn, direction of rotation, 24, cutter tooth installed surface, 26, periphery inclined plane, 26a, the first periphery inclined plane, 26b, the second periphery inclined plane, 28, arc surface, 29, groove, N, rotating speed, A, cutter tooth side vibration length, D1, external diameter, D2, aperture;
30, rimmer knife tooth, 32, front edged surface, 34, side, 36, side cutting blade, 38, periphery escape face, 39, periphery cutting blade, L1, the centripetal line length in side, R1, centripetal angle, side, the sword of T1, rimmer knife tooth is thick, S1, the centripetal amount in side;
40, short sword tooth, 42, front edged surface, 44, side, 46, side cutting blade, 48, periphery escape face.49, periphery cutting blade, L2, the centripetal line length in side, R2, centripetal angle, side, the sword of T2, short sword tooth is thick, S2, the centripetal amount in side;
W, machined material, F, feeding speed, X, ripple glaze, the distance of the ripple glaze X that Y, saw blade often rotate a circle, the angle of γ, ripple glaze;
100, rotating shaft, 103, ring flange, 105, ring flange contact-making surface, 107, locking nut;
The central shaft of C, saw blade, H1, imaginary plane, H2, imaginary plane, J1, radius, J2, radius.
The specific embodiment
The present invention is further detailed explanation in conjunction with the accompanying drawings and embodiments now, and these accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only shows the formation relevant with the present invention.
It should be noted that, Fig. 3 is III-III line sectional drawing of Fig. 1, specifically, comprises that the central shaft C of saw blade and the tip of rimmer knife tooth 30 are projected to respectively the section structure signal on imaginary plane H1, and III-III line is included in imaginary plane H1.Fig. 4 is the enlarged diagram that is projected to the rimmer knife tooth 30 on imaginary plane H1 showing in Fig. 3.Fig. 5 is V-V line sectional drawing of Fig. 1, specifically, comprises that the central shaft C of saw blade and the tip of short sword tooth 40 are projected to respectively the section structure signal on imaginary plane H2, and V-V line is included in imaginary plane H2.Fig. 6 is the enlarged diagram that is projected to the short sword tooth 40 on imaginary plane H2 showing in Fig. 5.
According to Fig. 1-10, example 1 of the present invention is described below.
As shown in Figure 1, 2, a kind of saw blade 10, it is identical with annular saw or side milling cutter discoideus that integral body is.Saw blade 10 comprises the annular saw body 12 being formed by discoideus gold and a plurality of cutters tooth 14 of being located at annular saw body 12 peripheries.The center of saw blade 10 forms the circular embedded hole 16 connecting on direction of principal axis.As shown in Figure 3, Figure 4, the thickness U1 of annular saw body determines according to the bendability of itself, and when the outer diameter D 1 of saw blade 10 is 400mm, the thickness U1 of annular saw body can be 2.5-8mm, such as 3.2mm.
Saw blade 10, as shown in Figure 2, the periphery of annular saw body 12 is provided with a plurality of cutter tooth installation portions 20, and cutter tooth installation portion 20 is radially outwards given prominence to and is formed by annular saw body 12, is mountain peak shape.20 one-tenth central angle intervals such as grade of each cutter tooth installation portion arrange.The apex 22 of cutter tooth installation portion 20, radially outwards outstanding, and be arranged on cutter tooth installation portion 20 along the position of the direction of rotation Fn side of saw blade 10.
Cutter tooth installation portion 20, as shown in Figure 2, there is cutter tooth installed surface 24 at place, the inner circumferential side of apex 22, has periphery inclined plane 26 in periphery.Periphery inclined plane 26, between apex 22 in the cutter tooth installation portion 20 along the direction of rotation Fn the place ahead one side cutter tooth installation portion 20 adjacent with rear one side.And periphery inclined plane 26 is by extended the first periphery inclined plane 26a of the radially inner side from annular saw body 12 with to form at extended the second periphery inclined plane 26b of radially inner side than the first 26a great inclination angle, periphery inclined plane.Between the second periphery inclined plane 26b and cutter tooth installed surface 24, at inner radial place, form the arc surface 28 falling in.On cutter tooth installed surface 24, form the stepped vacancy that can settle cutter tooth 14.Between each cutter tooth installation portion 20, form groove 29.In Fig. 2, do not show, even if having the shockproof groove of incision intralamellar part or have from groove 29 on annular saw body 12, start have various shockproof grooves to be also fine towards the peripheral part of direction inside, footpath.
The shape of saw blade 10, from steel plate, deep formation, for example, profoundly form by laser cutting machined.Further, cutter tooth installed surface 24 is to be cut and formed by the instrument essence of for example milling cutter.
As shown in Figure 2, cutter tooth 14 is fixed on cutter tooth installed surface 24 places, for example, with solder flux, fix.Cutter tooth 14 is comprised of rimmer knife tooth 30 and short sword tooth 40.Rimmer knife tooth, short sword tooth 40 is rectangular-shaped by the hard knife head forming such as superhard alloy, ceramic-metallic hard material, or the high rigidity cutter head forming such as the adamantine high rigidity sintered body of many crystallizations.Rimmer knife tooth 30 as shown in Figure 2, has front edged surface 32, side 34, side cutting blade 36, periphery escape face 38, periphery cutting blade 39.Front edged surface 32 is relative with the periphery inclined plane 26 in direction of rotation Fn the place ahead.Side 34 is with thickness direction the state of intersecting vertically.The position that side cutting blade 36 intersects in front edged surface 32 and side 34.Periphery cutting blade 39, the position intersecting in front edged surface 32 and periphery escape face 38.Rimmer knife tooth 30 as shown in Figure 2 and Figure 3, starts radially outstanding to outside time from annular saw body 12, to the thickness direction of annular saw body 12, is also that the central shaft C direction of saw blade is outstanding.As shown in Figure 3,4, the thick T1 scope of the sword of rimmer knife tooth is at 2.6-10mm, and while being 400mm such as outer diameter D 1, the thick T1 of sword of rimmer knife tooth is 4.4mm.The basic comprising of short sword tooth 40 is the same with rimmer knife tooth 30.As Fig. 2, shown in 5,6, have front edged surface 42, side 44, side cutting blade 46, periphery escape face 48 and periphery cutting blade 49.The thick T2 scope of sword of short sword tooth is at 2.6-10mm, and when external diameter is 400mm, the thick T2 of the sword of short sword tooth is 4.4mm.
Rimmer knife tooth 30, as shown in Figure 4, side 34 starts towards inner radial from the position of periphery cutting blade 39, take radius J1 as benchmark forms the centripetal angle R1 in side, has the centripetal amount S1 in side.Rimmer knife tooth 30, has the centripetal line length L1 in side that is more than or equal to 4mm, and preferably scope is 4-12mm, and what so in the process of processing, the ripple quantity of machined material W section can be controlled is less, and the price of saw blade 10 is cheaper.When the not enough 4mm of the centripetal line length L1 in the side of rimmer knife tooth 30, the ripple quantity of above-mentioned section is difficult to diminish; When the centripetal line length L1 in side is when 12mm is above, saw blade 10 is just difficult to obtain cheap price.According to on, for obtaining less section ripple quantity and comparatively cheap price, the best scope of the centripetal line length L1 in side is at 4-8mm.
Below double radial line J1, the centripetal angle R1 in side and the centripetal line length L1 in side specifically describe.
As shown in Figure 4, the central shaft C of periphery cutting blade 39 and saw blade can observe by imaginary plane H1.Article two, radius J1 is included in imaginary plane H1, and for started to point to respectively the central shaft C of saw blade by the direction of principal axis two ends of periphery cutting blade 39, and the illusion line intersecting vertically with the central shaft C of saw blade.The centripetal angle R1 in side, is that radius J1 be take respectively as benchmark in two sides 34 of rimmer knife tooth 30, is started towards inner radial the angle of the inclination having by the direction of principal axis two ends of periphery cutting blade 39.The centripetal line length L1 in side is that the side 34 of rimmer knife tooth 30 is from the length along radius J1 direction of periphery cutting blade 39 34 radial inner end to side.
Rimmer knife tooth 30, has the centripetal angle R1 in side of 0 °-1.0 ° as shown in Figure 4.When the side of rimmer knife tooth 30, centripetal angle R1 is less than 0 °, be that angle value is while being negative value, when rotating shaft 100 as shown in Figure 7, with ring flange contact-making surface 105, vibration occurs, with respect to the ripple glaze X of the machined material W shown in Fig. 8, cutting resistance will become large or have burnt possibility.When the angle of the centripetal angle R1 in the side of rimmer knife tooth 30 is greater than 1.0 °, centripetal angle R1 is excessive in side, and like this ripple glaze X of machined material W and the contact area of side 34 will diminish, and the ripple glaze of the section of machined material W may just can not diminish.In view of more than, the angular range of the centripetal angle R1 in side of rimmer knife tooth 30 wishes at 0.2 °-0.8 °, but preferably at 0.3 °-0.7 °.
Short sword tooth 40, side 44 starts towards inner radial from the position of periphery cutting blade 49 as shown in Figure 6, take radius J2 as the benchmark formation centripetal angle R2 in side, and has the centripetal amount S2 in side.Short sword tooth 40, has the centripetal line length L2 in side that is less than 4mm.Preferably whole short sword teeth 40 all has the centripetal line length L2 in side of 1-2mm.When the centripetal line length L2 in the side of short sword tooth 40 is during less than 1mm, easily wearing and tearing in process, and then cause the life-span significantly to reduce.When the centripetal line length L2 in side is when 2mm is above, the cost of saw blade 10 is higher.Short sword tooth 40, has the centripetal angle R2 in side of 0 °-1.0 °.When the side of short sword tooth 40, centripetal angle R2 is less than 0 °, when angle value is negative value, between the rotating shaft 100 shown in Fig. 7 and ring flange contact-making surface 105, will produce vibration.Therefore with respect to the ripple glaze X of the machined material W shown in Fig. 8, just probably produce the resistance of cutting.
Here, the radius J2 of short sword tooth 40, the radius J1 of the centripetal angle R2 in side and the centripetal line length L2 in side and above-mentioned rimmer knife tooth 30, the centripetal angle R1 in side and the centripetal line length L1 in side are same definition.In other words, as shown in Figure 6, radius J2 includes the central shaft C of periphery cutting blade 49 and saw blade.By imaginary plane H2, can see, from the direction of principal axis two ends of periphery cutting blade 49, start the imaginary line that has respectively to be orthogonal to the central shaft C of saw blade, i.e. radius J2.The centripetal angle R2 in side, is to take radius J2 as benchmark, and the side 44 of short sword tooth 40 starts respectively an angle of inclination towards inner radial from the arbitrary end of direction of principal axis of periphery cutting blade 49.The centripetal line length L2 in side, is to take radius J2 as benchmark, and the side 44 of short sword tooth 40 starts the length to inner radial from axial arbitrary end of periphery cutting blade 49.Above-mentioned periphery cutting blade 49 is the tip of short sword tooth 40.
As shown in Figure 1, the quantity of rimmer knife tooth 30 accounts for the total 2-15% of rimmer knife tooth 30 and short sword tooth 40, and will be more than 2.The quantity of rimmer knife tooth 30 discontented cutter tooth 14 sums 2% time, the ripple quantity of the machined material W section by 30 processing of rimmer knife tooth will be difficult to diminish.Also have, if the quantity of rimmer knife tooth 30 be greater than cutter tooth 14 sums 15% time, the Costco Wholesale of saw blade 10 is just difficult to reduce.The cutter tooth 14 of saw blade 10, by 6 rimmer knife teeth and 66 short sword teeth, totally 72 teeth form.Each rimmer knife tooth 30, the configuration that central angle can not wait at interval, but preferred center angle becomes uniformly-spaced configuration.Central angle becomes in the situation of uniformly-spaced configuration, in process, with rotating shaft 100, contact ring flange contact-making surface 105 vibration time be embodied in the ripple glaze X of the machined material W on machined surface just can not be everywhere, what the ripple glaze X of machined material W just can be than the situation change of the central angle unequal interval configuration of each rimmer knife tooth 30 is less.
Saw blade 10 is installed in rotary work in processing unit (plant), and described processing unit (plant) as shown in Figure 7, comprises from electro-motor (there is no diagram) and starts the rotating shaft 100 that along continuous straight runs extends.On rotating shaft 100, be provided with the ring flange 103 of clamping saw blade 10.Ring flange 103 is connected with the annular saw body 12 of saw blade 10, has a ring flange contact-making surface 105.While saw blade 10 being installed in processing unit (plant), as Fig. 1, the saw blade 10 shown in 7 utilizes locking nut 107 that annular saw body 12 is arranged on rotating shaft 100 by its embedded hole 16.During work, described electro-motor driven rotary axle 100 rotates, and then drives saw blade 10 at direction of rotation Fn, to reach the rotational speed N of defined.Machined material W is cut with certain feeding speed F, and the part contacting with saw blade 10 can be cut off.
Next, when utilizing saw blade 10 to cut machined material W, rimmer knife tooth 30 roles describe.Fig. 8 shows, is accompanied by the vibration of rotating shaft 100 and ring flange contact-making surface 105, while there is the state of vibration length in cutter tooth side, and the ideograph of the ripple glaze X producing during cutting machined material W.As shown in Figure 8, saw blade 10 can vibrate with ring flange dish contact-making surface 105 places at the rotating shaft 100 of processing unit (plant), therefore will occur in cutter tooth side cutter tooth side vibration length A.Here, if hypothesis saw blade 10 is all to consist of short sword tooth 40, the periphery cutting blade 49 of short sword tooth 40, when saw blade 10 rotation, with respect to machined material W, the track with ripple glaze X cuts.In other words, the saw blade only forming with short sword tooth 40, is accompanied by cutter tooth side vibration length A and can produces ripple glaze X.This ripple glaze X has the height with cutter tooth side vibration length A equal extent, and this is just defined as the ripple glaze amount of machined material W section.In this example, saw blade 10, has short sword tooth 40 and rimmer knife tooth 30.Therefore, saw blade 10, in rotation, has the rimmer knife tooth 30 of the centripetal line length L1 in side, so the ripple glaze amount of cutting machined material W section with smooth ripple glaze X will diminish.
The shape of ripple glaze X, as shown in Figure 7,8, the speed of the sending into F of the rotational speed N of saw blade 10, machined material W, and the vibration of rotating shaft 100 and ring flange contact-making surface 105, for affecting the three elements of saw blade 10 cutter tooth sides vibration length A.As mentioned above, for machined material W, the periphery cutting blade 49 of short sword tooth 40 often rotates a circle at saw blade 10, just there will be a Cutting trajectory approximate with ripple glaze X.Therefore, the distance Y (mm) of the ripple glaze X that saw blade often rotates a circle, and sends into speed F(m/min) and the relation of the rotational speed N (rpm) of saw blade 10, meet " Y=(F * 1000)/N ".Also have, the maximum height of ripple glaze X is equally high with cutter tooth side vibration length A.At this moment, the distance Y of the ripple glaze X that saw blade often rotates a circle is base, and the cutter tooth side vibration length A of take is height, forms triangle as shown in Figure 8.The angle γ that is ripple glaze by this leg-of-mutton base angle viewpoint definition, meets " γ=2A/Y ".According to more than, the centripetal angle R1 in side of rimmer knife tooth 30, less than the angle γ of ripple glaze, so the ripple glaze amount of machined material W section also can diminish.
According to more than, the relation of the centripetal angle R1 in side of the angle γ of reference wave Slippage and rimmer knife tooth 30, during saw blade 10 work, the preferred 1000-5000rpm of rotational speed N.
Also have, the relation of the centripetal angle R1 in side of the angle γ of reference wave Slippage and rimmer knife tooth 30, the speed of the sending into F of machined material W is 5-120m/min.When sending into the not enough 5m/min of speed F, the ripple glaze quantitative change of machined material W section is little, but process velocity can be slack-off.Send into speed F when being greater than 120m/min, the ripple glaze amount of machined material W section will become large.With further reference to the ripple glaze amount of process velocity and machined material W section, the preferred 20-80m/min of the speed of sending into F of machined material W.
Next, relation between the ripple glaze amount of the centripetal line length L1 in the side of rimmer knife tooth 30 and machined material W section is described.The cutter tooth side vibration length A of setting saw blade 10 is 0.3mm, the centripetal angle R1 in side of rimmer knife tooth 30 is 1 °, choose respectively the situation that the centripetal line length L1 in side is 1mm, 2mm, 4mm, 8mm and 12mm, measure the ripple glaze amount of machined material W section with the trend of sending into speed F variation.Measurement result as shown in Figure 9.
Next, the cutter tooth side vibration length A of setting saw blade 10 is 0.3mm, the centripetal angle R1 in side of rimmer knife tooth 30 is 0.5 °, choose respectively the situation that the centripetal line length L1 in side is 1mm, 2mm, 4mm, 8mm and 12mm, measure the ripple glaze amount of machined material W section with the trend of sending into speed F variation, its result as shown in figure 10.
As Fig. 9, shown in 10, when the centripetal line length L1 in side is 1mm, 2mm, send into speed F in the scope of 0-20m/min, the ripple glaze amount of machined material W section can significantly become large.More than the preferred 20m/min of the speed of sending into F due to machined material W in the present invention, thus saw blade 10 the centripetal line length L1 in side to be set as 1mm, 2mm be unaccommodated.On the other hand, when the side of saw blade 10, centripetal line length L1 is 4mm, and the centripetal angle R1 in side is 1 °, and with the speed of the sending into F of 30m/min, machined material W is added to man-hour, more than the ripple glaze amount of machined material W section can rise to 0.08mm rapidly.Also have, the centripetal angle R1 in side is 0.5 °, and with the speed of the sending into F of 25m/min, machined material W is added to man-hour, more than the ripple glaze amount of machined material W section can rise to 0.04mm rapidly.Therefore, rimmer knife tooth 30, when the speed of the sending into F of machined material W selects 20m/min above, just can obtain the centripetal line length L1 in side more than gratifying 4mm.Also have, the use centripetal angle R1 in side is that the rimmer knife tooth 30 of 0.5 ° is the rimmer knife tooth 30 of 1.0 ° than the use centripetal angle R1 in side, and the ripple glaze amount of machined material W section is less.
A specific embodiment 1 in above-mentioned example 1:
Saw blade 10, the quantity of the thickness U1:3.2mm of outer diameter D 1:400mm, annular saw body, aperture D2:75mm, cutter tooth installation portion 20: 72.
Rimmer knife tooth 30, the quantity of rimmer knife tooth 30 is 6, the thick T1:4.4mm of sword of rimmer knife tooth, the centripetal line length L1:8mm in side, the centripetal angle R1:1 ° in side.Each rimmer knife tooth 30 is configured to the style such as central angle interval such as grade that central angle is respectively 60 degree.
Short sword tooth 40, the quantity of short sword tooth 40 is 66, the thick T2:4.4mm of sword of short sword tooth, the centripetal line length L2:2mm in side, the centripetal angle R2:1 ° in side.
The cutter tooth side vibration length A of the saw blade of embodiment 1 10 is set as respectively to 0.22mm and 0.35mm, use 10 couples of machined material W of this saw blade to process test, measure the relation between cutter tooth side vibration length A and the ripple glaze amount of machined material W section, condition determination is as follows:
Machined material W is the MDF(medium density fibre board (MDF) that is fitted with melamine plate that two thickness are 15mm) overlapping forming, so gross thickness reaches 30mm.The MDF that is fitted with melamine plate first mixes timber small pieces and is hot pressed into MDF with binding agent, then forms in MDF surface heat densification amine thin plate.
Processing unit (plant), the speed of the sending into F:39m/min of the rotational speed N of the diameter of ring flange 103: 120mm, saw blade 10: 3600rpm, machined material W.
Measurement result as shown in figure 11, represents measured value with black circle.As shown in Figure 11, cutter tooth side vibration length A is as being 0.22mm, and the ripple glaze amount of machined material W section is 0.03mm.Cutter tooth side vibration length A is 0.35mm, and the ripple glaze amount of machined material W section will become 0.08mm.
For embodiment 1, following 7 comparative examples are set:
Comparative example 1 to 4, is with the difference part of embodiment 1: saw blade 10 has 72 cutters tooth 14, the centripetal line length in side of each cutter tooth 14: 2mm, centripetal angle, side: 1 °.The cutter tooth side vibration length A of comparative example 1 to 4 is respectively 0.10mm, 0.15mm, 0.45mm, 0.52mm.Under the condition determination identical with embodiment 1, use the saw blade 10 of comparative example 1-4 respectively to processing test with machined material W, measure the relation between cutter tooth side vibration length A and the ripple glaze amount of machined material W section, measurement result as shown in figure 11, with * represent measured value, with straight line, represent the relation of the ripple glaze amount of saw blade 10 cutter tooth side vibration length A and machined material W section.
Comparative example 5, is with the difference part of embodiment 1: saw blade 10 has 72 cutters tooth, the centripetal line length in side of each cutter tooth 14: 6.5mm, centripetal angle, side: 1 °, and cutter tooth side vibration length A: 0.50mm.Under the condition determination identical with embodiment 1, use 10 couples of machined material W of saw blade of comparative example 5 to process test, measure the relation between cutter tooth side vibration length A and the ripple glaze amount of machined material W section, measurement result as shown in figure 11, with black triangle, represent measured value, with straight line, represent the relation of the ripple glaze amount of saw blade 10 cutter tooth side vibration length A and machined material W section.
Comparative example 6-7, be with the difference part of embodiment 1: saw blade 10 has 72 cutters tooth 14, the centripetal line length in side of each cutter tooth 14: 6.5mm, centripetal angle, side: 40 ', the cutter tooth side vibration length A of comparative example 6 and comparative example 7 is respectively 0.04mm and 0.52mm.Under the condition determination identical with embodiment 1, use the saw blade 10 of comparative example 6-7 respectively machined material W to be processed to test, measure the relation between cutter tooth side vibration length A and the ripple glaze amount of machined material W section, measurement result as shown in figure 11, with black quadrangle, represent measured value, with straight line, represent the relation of the ripple glaze amount of saw blade 10 cutter tooth side vibration length A and machined material W section.
As shown in figure 11, in comparative example 1, the ripple glaze amount of machined material W section is 0.08mm.In comparative example 2, the ripple glaze amount of machined material W section is 0.06mm.In comparative example 3, the ripple glaze amount of machined material W section is 0.24mm.In comparative example 4, the ripple glaze amount of machined material W section is 0.28mm.According to more than, when all the centripetal line length in side of cutter tooth 14 is 2mm, being just equal to complete is short sword tooth 40, due to the vibration of rotating shaft 100 with ring flange contact-making surface 105, along with the change of cutter tooth side vibration length A is large, the ripple glaze amount of machined material W section will become large.
As shown in figure 11, in comparative example 5, the ripple glaze amount of machined material W section is 0.10mm.In comparative example 6, the ripple glaze amount of machined material W section is 0.01mm.In comparative example 7, the ripple glaze amount of machined material W section is 0.08mm.In comparative example 5-7, all the centripetal line length in side of cutter tooth 14 is more than 4mm, along with the vibration of rotating shaft 100 and ring flange contact-making surface 105, large even if vibration length A in cutter tooth side becomes, little also or than comparative example 1 to 4 of the ripple glaze amount of machined material W section.But all cutter tooth 14 is rimmer knife the tooth 30 more than centripetal line length 4mm in side, saw blade 10 costs that form are not low.
On the other hand, in embodiment 1, the quantity of rimmer knife tooth 30 is 6, accounts for the 2-15% of whole 72 cutters tooth, and effect when at this moment the whole cutters tooth 14 of the ripple glaze amount of machined material W section and saw blade 10 adopt rimmer knife tooth 30 to form is close.In other words, as long as the quantity of rimmer knife tooth 30 reaches, be the 2-15% of saw blade 10 whole cutter tooth 14 quantity, just can obtain unexpected effect.The saw blade 10 forming like this, can make the ripple glaze amount of machined material W section significantly diminish and also price also cheap.
As mentioned above, the saw blade 10 of this example, even when rotating shaft 100, with ring flange contact-making surface 105 places, vibration occurs, it is very little that the ripple glaze amount of machined material W section also can become, and saw blade 10 prices are cheap.Although rimmer knife tooth 30, short sword tooth 40, by forming such as the adamantine expensive material of many crystallizations, is compared with short sword tooth 40, very expensive of rimmer knife tooth 30, but because the quantity of rimmer knife tooth 30 only accounts for the 2-15% of cutter tooth 14 sums, the saw blade 10 therefore forming is still dirt cheap.
Saw blade of the present invention, is not limited only to above-mentioned example, can also be other following examples.
Example 2:
Only be with the difference of example 1: at rimmer knife tooth 30, the front edged surface of short sword tooth 40 arranges inclination angle.Owing to having set anterior angle face tilt angle, the ripple glaze amount of machined material W section will further diminish, and obtains very level and smooth section.Particularly, along with the vibration of rotating shaft 100 with ring flange contact-making surface 105, cutter head side vibration length A also can also obtain desirable section while becoming large.
Example 3:
Only be with the difference of example 1: the periphery cutting blade 39 of rimmer knife tooth 30, angle is ground in the periphery cutting blade 49 places design of short sword tooth 40.Owing to having designed, grind angle, the ripple glaze amount of machined material W section also can further diminish, and then also can obtain very level and smooth section.
Example 4:
Only be with the difference of example 1: as shown in figure 12, the rimmer knife tooth 30 of saw blade 10 arranges chamfering at the place, two ends of periphery cutting blade 39.As shown in figure 13, the short sword tooth 40 of saw blade 10 also arranges chamfering at the place, two ends of periphery cutting blade 49.
Above foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, related personnel can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on description, must determine technical scope according to claim scope.
Claims (3)
1. a saw blade, comprise discoideus annular saw body and a plurality of cutters tooth of being located at described annular saw body periphery, it is characterized in that: described cutter tooth comprises rimmer knife tooth and short sword tooth, the centripetal line length in side of described rimmer knife tooth is more than or equal to 4mm, the centripetal line length in side of described short sword tooth is less than 4mm, the quantity of described rimmer knife tooth accounts for the 2-15% of described cutter tooth sum, and be more than 2, the centripetal line length in described side is the side of the cutter tooth length along radius direction from periphery cutting blade to side radial inner end, wherein radius is for being started to point to the central shaft of saw blade the illusion line intersecting vertically with the central shaft of saw blade by the direction of principal axis two ends of periphery cutting blade.
2. saw blade according to claim 1, it is characterized in that: described rimmer knife tooth has that to take described annular saw body radius be benchmark, angle is the centripetal angle, side of 0 °-1.0 °, centripetal angle, described side is that radius be take respectively as benchmark in two sides of cutter tooth, direction of principal axis two ends by periphery cutting blade start towards inner radial, the angle of the inclination having.
3. saw blade according to claim 1 and 2, is characterized in that: the centripetal line length in side of arbitrary described short sword tooth is 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310060970.6A CN103071855B (en) | 2013-02-27 | 2013-02-27 | Circular saw blade |
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| CN201310060970.6A CN103071855B (en) | 2013-02-27 | 2013-02-27 | Circular saw blade |
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| CN103071855A CN103071855A (en) | 2013-05-01 |
| CN103071855B true CN103071855B (en) | 2014-09-17 |
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| CN201310060970.6A Expired - Fee Related CN103071855B (en) | 2013-02-27 | 2013-02-27 | Circular saw blade |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59129615A (en) * | 1983-01-12 | 1984-07-26 | Hashimoto Tokushu Kogyo Kk | Vibration preventive device for cutting blade of metal cutting circular saw |
| JP3170498B2 (en) * | 1999-01-29 | 2001-05-28 | 兼房株式会社 | Circular saw |
| DE20121039U1 (en) * | 2001-12-28 | 2002-03-14 | Ake Knebel Gmbh & Co | Disc-shaped tool, in particular circular saw blade |
| JP3896127B2 (en) * | 2004-05-14 | 2007-03-22 | 兼房株式会社 | Tip saw |
| ES2270689B1 (en) * | 2005-01-20 | 2008-03-01 | Instalaciones Inabensa, S.A. | SMOKE SECTOR BARRIER. |
| DE102006034747A1 (en) * | 2006-03-11 | 2007-09-13 | Rick Jansen-Herfeld | Circular saw blade, has different tooth shapes or unequal tooth widths and tooth pitch, which is small before lower flat tooth, where lower flat tooth has larger tooth width than tooth width of upper trapezoidal tooth in special design |
| US8210081B2 (en) * | 2007-06-12 | 2012-07-03 | Irwin Industrial Tool Company | Reciprocating saw blade having variable-height teeth and related method |
| CN101758521B (en) * | 2010-01-07 | 2012-05-09 | 宫电高周波设备（上海）有限公司 | Tipped saw blade |
| CN201776524U (en) * | 2010-08-30 | 2011-03-30 | 江苏益林金刚石工具有限公司 | Special alloy saw blade for cutting aluminium materials |
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