CN204867639U - Saw blade - Google Patents
Saw blade Download PDFInfo
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- CN204867639U CN204867639U CN201490000424.1U CN201490000424U CN204867639U CN 204867639 U CN204867639 U CN 204867639U CN 201490000424 U CN201490000424 U CN 201490000424U CN 204867639 U CN204867639 U CN 204867639U
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- sawtooth
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- 230000001154 acute effect Effects 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims description 11
- 238000003754 machining Methods 0.000 abstract 1
- 241000763859 Dyckia brevifolia Species 0.000 description 111
- 230000003746 surface roughness Effects 0.000 description 11
- 230000010355 oscillation Effects 0.000 description 5
- 239000011195 cermet Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 235000019592 roughness Nutrition 0.000 description 3
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/02—Circular saw blades
- B23D61/04—Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/12—Straight saw blades; Strap saw blades
- B23D61/14—Straight saw blades; Strap saw blades with inserted saw teeth, i.e. the teeth being individually inserted
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
Saw blade possesses the sawtooth that has hard piece at the front end. Above -mentioned sawtooth includes: have the first follow -up tooth of first piece, this first piece has the trapezoidal shape of front end width broad in above -mentioned saw blade's thickness direction to both ends in smooth front end reason are formed with chamfer portion, have the first in advance tooth of second piece, above -mentioned front end that this second piece has a first piece than the aforesaid is along outstanding front end reason, and the above -mentioned width of the above -mentioned first piece of width ratio of smooth front end reason is narrow to, the tooth depth is higher than above -mentioned first piece tooth depth, have the follow -up tooth of second of third piece, this third piece has the acute angle bight of chamfer portion salient on width direction of the party of first piece than the aforesaid to, the tooth depth is the same with the above -mentioned tooth depth of above -mentioned first follow -up tooth, and the follow -up tooth of the third that has the third piece, this third piece has the acute angle bight of chamfer portion salient on width direction of the another party of first piece than the aforesaid to, the tooth depth is the same with the above -mentioned tooth depth of above -mentioned first follow -up tooth. According to above -mentioned saw blade, can carry out finish machining more with high precision to the cut area.
Description
Technical field
The utility model relates to the saw blade [sawblade] in the front end [tips] of sawtooth [sawteeth] with stiff sheet [hardchips].
Background technology
Band sawing machine [bandsawmachine] is used in order to cut off workpiece (metal material).When band sawing machine carries out cutting workpiece, in order to realize the further high efficiency cut off at a high speed under (such as, the cut-out with more than saw cutting speed 1000m/point aluminium block carried out), the precision of section that importantly vibration suppression of bands for band brings improves.In addition, according to the vibration suppression of bands for band, except the precision of section improves, noise can also be realized and reduce, prevent from collapsing tooth, blade life raising.
The saw blade of a part possesses point tooth [setteeth] bending to side relative to cutting direction (bands for band is direct of travel [feedingdirection], and circular saw blade [circularsawblade] is direction of rotation [rotatingdirection]).In such saw blade, in order to avoid the resonance of sawtooth, adopt and do not wait SaW pitch [variabletoothpitch].In addition, in order to suppress the vibration of saw blade when cutting off, the saw blade (so-called dovetail divides rack saw bar [dovetail-toothsawblade]) with the sawtooth of dovetail shape [dovetailshaped] is also used.
Dovetail divides rack saw bar generally to possess the stiff sheet made by superhard alloy [cementedcarbide], cermet [cermet], pottery [ceramic], high-speed tool steel [high-speedtoolsteel] etc. in the front end of sawtooth.If observe along the cutting direction of workpiece, stiff sheet generally has symmetric shape.Such as, there is the multiple symmetric shape such as trapezoidal that the width that is trapezoidal, front end of the wider width of front end is narrower.Divide with regard to rack saw bar with regard to dovetail, accurately machined dovetail sawtooth [dovetailtooth] is carried out to the section of workpiece there is the lower and shape that front end is the widest in the horizontal of tooth depth (size till from reference position to tooth top), and by the two ends of front-end edge, fine finishining is carried out to section.
Namely, in the fine finishining of the section utilizing dovetail sawtooth to carry out, fine finishining is carried out to opposed section in the cutting groove formed utilizing leading tooth [precedingtooth] all the time in the two ends of front-end edge, and is retrained by opposed section in the horizontal all the time.Therefore, if the deviation existed on the form accuracy of dovetail sawtooth a little because of foozle etc., then can change the load (cutting resistance) at two ends, become and easily produce run [obliquelycutting], collapse tooth [toothchipping].In addition, the saw blade possessing dovetail sawtooth has various structures, and following patent document 1 and 2 discloses the saw blade possessing dovetail sawtooth.
Prior art document
Patent document
Patent document 1: Japanese Laid-Open 2000-263327 publication
Patent document 2: Japan's patent No. 4727919 publication
Utility model content
Patent document 1 discloses a kind of saw blade, and this saw blade possesses: the higher and leading tooth (representing with " 21 " in Fig. 6) of the trapezoidal shape that the width of front end is narrower of tooth depth; And the flat tooth [flattooth] (representing with " 19 " and " 23 " in Fig. 6) that the tooth depth widening the cutting groove that [widen] is formed by this leading tooth is lower.Because widen cutting groove, so effect has larger cutting resistance on flat tooth, and act on larger component in the horizontal because of this cutting resistance.Therefore, all become 30 μm (Fig. 9) at the surface roughness Rmax (maximum height Rmax:JISB0601:1982) of section, in the more high-precision fine finishining of section, expect further to improve.
Patent document 2 also discloses the saw blade (Fig. 7 ~ Figure 12) same with the saw blade of patent document 1.In the saw blade disclosed in patent document 2, the leading tooth in patent document 1 and flat tooth are phase co-altitude, there is the problem same with the saw blade of patent document 1.
The purpose of this utility model is, provides and more precisely can carry out accurately machined saw blade to section.
First scheme of the present utility model provides a kind of saw blade, possesses the sawtooth in front end with stiff sheet, above-mentioned sawtooth comprises: the first follow-up tooth with first, this first has the trapezoidal shape of front end wider width on the thickness direction of above-mentioned saw blade, and is formed with chamfered section at the two ends of smooth front-end edge; Have the first leading tooth of second, this second has the front-end edge more outstanding than the above-mentioned front-end edge of above-mentioned first, and the width of smooth front-end edge is narrower than the above-mentioned width of above-mentioned first, and tooth depth is higher than above-mentioned first tooth depth; Have the second follow-up tooth of the 3rd, the 3rd has the acute angle corner portions of giving prominence in the direction of the width than the chamfered section of a side of above-mentioned first, and tooth depth is identical with the above-mentioned tooth depth of above-mentioned first follow-up tooth; And there is the 3rd follow-up tooth of the 3rd, the 3rd has the acute angle corner portions of giving prominence in the direction of the width than the chamfered section of the opposing party of above-mentioned first, and tooth depth is identical with the above-mentioned tooth depth of above-mentioned first follow-up tooth.
Be preferably at this, above-mentioned sawtooth also comprises the second leading tooth that the cutting groove that formed above-mentioned first leading tooth is widened, the tooth depth of above-mentioned second leading tooth is lower than the above-mentioned tooth depth of above-mentioned first leading tooth, and, higher than the above-mentioned tooth depth of above-mentioned first follow-up tooth.
Be preferably in addition, in a sawtooth tooth group, possess plural above-mentioned first follow-up tooth.
Be preferably in addition, in a sawtooth tooth group, the sum of above-mentioned second follow-up tooth and the 3rd follow-up tooth is below the sum of above-mentioned first follow-up tooth, above-mentioned first leading tooth and above-mentioned second leading tooth.
Be preferably in addition, above-mentioned first ~ above-mentioned 3rd is formed by the sheet material grinding of same shape.
Be preferably in addition, the above-mentioned acute angle corner portions of above-mentioned second follow-up tooth and above-mentioned 3rd follow-up tooth each overhang of comparing above-mentioned first saw wide less than more than 4.0% 8.5%.
Be preferably in addition, above-mentioned second follow-up tooth and above-mentioned 3rd follow-up tooth are configured in the rearmost part of the direct of travel of above-mentioned sawtooth in a sawtooth tooth group.
Alternative plan of the present utility model provides a kind of saw blade, possesses the sawtooth in front end with stiff sheet, and above-mentioned sawtooth comprises: the first leading tooth cutting above-mentioned workpiece when work blank in advance, the first follow-up tooth that the cutting groove formed above-mentioned first leading tooth is widened, and accurately machined second follow-up tooth and the 3rd follow-up tooth are carried out to the section of the cutting groove widened by above-mentioned first follow-up tooth, above-mentioned first follow-up tooth has the trapezoidal shape of front end wider width on the thickness direction of above-mentioned saw blade, and, there is smooth front-end edge and be formed at the chamfered section at two ends of this front-end edge respectively, above-mentioned second follow-up tooth has the acute angle corner portions more outstanding on above-mentioned thickness direction than the above-mentioned chamfered section of a side of above-mentioned first follow-up tooth, and, there is the tooth depth identical with the tooth depth of above-mentioned first follow-up tooth, 3rd follow-up tooth has the acute angle corner portions more outstanding on above-mentioned thickness direction than the above-mentioned chamfered section of the opposing party of above-mentioned first follow-up tooth, and, there is the tooth depth identical with the tooth depth of above-mentioned first follow-up tooth.
According to above-mentioned first or alternative plan, the tooth depth of the second follow-up tooth and the 3rd follow-up tooth is identical with the tooth depth of the first follow-up tooth, carries out fine finishining respectively from the acute angle corner portions that the chamfered section at two ends of the smooth front-end edge being formed at the first follow-up tooth is outstanding to thickness direction to the section of workpiece.The size of the chamfered section of the first follow-up tooth is less, and acute angle corner portions is also less from the overhang of chamfered section.Therefore, the cutting resistance acting on the second follow-up tooth and the 3rd follow-up tooth is less, and the component of thickness direction during cut-out is suppressed.Its result, can suppress vibration, thus opposed section is by the second follow-up tooth and the 3rd follow-up tooth fine finishining accurately.
Accompanying drawing explanation
Fig. 1 (A) is the side view of the saw blade of the first embodiment, and Fig. 1 (B) is the upward view of above-mentioned saw blade.
Fig. 2 (A) is the front view of above-mentioned saw blade, Fig. 2 (B) is the front view of leading tooth, Fig. 2 (C) is the front view of the 3rd follow-up tooth, and Fig. 2 (D) is the front view of the second follow-up tooth, and Fig. 2 (E) is the front view of the first follow-up tooth.
Fig. 3 (A) is the side view of the saw blade of the second embodiment, and Fig. 3 (B) is the upward view of above-mentioned saw blade.
Fig. 4 (A) is the front view of above-mentioned saw blade, Fig. 4 (B) is the front view of (first) leading tooth, Fig. 4 (C) is the front view of the first follow-up tooth, Fig. 4 (D) is the front view of the second leading tooth, Fig. 4 (E) is the front view of the 3rd follow-up tooth, and Fig. 4 (F) is the front view of the second follow-up tooth.
Fig. 5 (A) is the side view of the saw blade of the 3rd embodiment, and Fig. 5 (B) is the upward view of above-mentioned saw blade.
Fig. 6 (A) is the front view of above-mentioned saw blade, Fig. 6 (B) is the front view of (first) leading tooth, Fig. 6 (C) is the front view of the first follow-up tooth, Fig. 6 (D) is the front view of the second leading tooth, Fig. 6 (E) is the front view of the 3rd leading tooth, Fig. 6 (F) is the front view of the 3rd follow-up tooth, and Fig. 6 (G) is the front view of the second follow-up tooth.
Fig. 7 is the front view of the saw blade possessing multiple leading tooth.
Fig. 8 (A) is the side view of saw blade (the second embodiment), and Fig. 8 (B) is the upward view of above-mentioned saw blade.
Fig. 9 (A) is the side view of saw blade (the 3rd embodiment), and Fig. 9 (B) is the upward view of above-mentioned saw blade.
Figure 10 (A) ~ Figure 10 (D) is the front view for the saw blade of testing.
Figure 11 is the chart representing experimental result.
Detailed description of the invention
[the first embodiment]
As shown in Fig. 1 (A) and Fig. 1 (B), the saw blade 1A of the first embodiment possesses base material [basematerial] (being band when bands for band, is plectane when circular saw blade) 3.Identically with general saw blade spaced apart and be formed with sawtooth 5,7,9 and 11 on base material 3.Teeth groove [gullet] 13 is formed between each sawtooth 5,7,9 and 11.The stiff sheet 15,17,19 or 21 be made by superhard alloy, cermet, pottery, high-speed tool steel etc. is fixed with in each front end of sawtooth 5,7,9 and 11.
Sawtooth 5 cuts the leading tooth 5 of workpiece (first) in advance.The tooth depth (height smooth front-end edge [flatendedge] 15A (with reference to Fig. 2 (B)) from the reference position of base material 3 to stiff sheet (second) 15) of leading tooth 5 is the highest sawtooth.Stiff sheet 15 is by carrying out grinding to trapezoidal and being formed, above-mentioned trapezoidal is (for direct of travel bands for band from cutting direction X, for direction of rotation in circular saw blade) trapezoidal of wider width of front-end edge when observing, above-mentioned cutting direction X is the direction orthogonal with direction [incisingdirection] Z of incision workpiece (with reference to Fig. 1 (A)).That is, as shown in Fig. 2 (B), by grinding, front-end edge 15A bilateral symmetry form inclined plane 15B.Inclined plane 15B is close to each other towards front-end edge 15A.In other words, the front end of stiff sheet 15 has the trapezoidal shape of narrowed width.
Sawtooth 7 is the first follow-up teeth [firstfollowingtooth] 7 width W 1 (with reference to Fig. 2 (A)) of the cutting groove [cutslot] formed by leading tooth 5 widened to width W 2.The tooth depth (height the smooth front-end edge 17A (with reference to Fig. 2 (E)) from the reference position of base material 3 to stiff sheet (first) 17) of the first follow-up tooth 7 is lower than leading tooth 5 tooth depth.The stiff sheet 17 of the first follow-up tooth 7 is also similarly formed by carrying out grinding to identical trapezoidal with leading tooth 5.That is, by grinding, form the tooth depth front-end edge 17A lower than leading tooth 5, and, front-end edge 17A bilateral symmetry form chamfered section [chamferededge] 17B.Chamfered section 17B is the inclined plane parallel with the inclined plane 15B of leading tooth 5.The size of chamfered section 17B compared to inclined plane 15B size minimum.
Sawtooth 9 is by the second follow-up tooth 9 of the side of cutting groove that formed by the first follow-up tooth 7 expanded width W3 a little.Sawtooth 11 is by the 3rd follow-up tooth 11 of the opposite side of cutting groove that formed by the first follow-up tooth 7 expanded width W3 a little.By the second follow-up tooth 9 and the 3rd follow-up tooth 11, the width W 2 (with reference to Fig. 2 (A)) of the cutting groove formed by the first follow-up tooth 7 is widened to width W 4=[W2+ (W3 × 2)].
The tooth depth (height the smooth front-end edge 19A (with reference to Fig. 2 (D)) from the reference position of base material 3 to stiff sheet (the 3rd) 19) of the second follow-up tooth 9 is equal with the tooth depth of above-mentioned first follow-up tooth 7.In addition, the tooth depth (height the smooth front-end edge 21A (with reference to Fig. 2 (C)) from the reference position of base material 3 to stiff sheet (the 3rd) 21) of the 3rd follow-up tooth 11 is also equal with the tooth depth of above-mentioned first follow-up tooth 7.The stiff sheet 19 of the second follow-up tooth 9 and the stiff sheet 21 of the 3rd follow-up tooth 11 are also similarly formed by carrying out grinding to identical trapezoidal with leading tooth 5.As shown in Fig. 2 (D) and Fig. 2 (C), stiff sheet 19 and stiff sheet 21 are cut symmetrically.
That is, concerning the second follow-up tooth 9, by grinding, the front-end edge 19A that tooth depth is lower than leading tooth 5 is formed, and, withdrawing face [escapesurface] 19C do not contacted with a side of opposed section is formed in one end of front-end edge 19A.In addition, the other end of front-end edge 19A is not ground, and forms acute angle corner portions [sharpcorner] 19B of the opposing party being used for the opposed section of fine finishining.As shown in Fig. 2 (A), acute angle corner portions 19B is outstanding a little from the chamfered section 17B of the first follow-up tooth 7.Similarly, concerning the 3rd follow-up tooth 11, by grinding, also form front-end edge 21A, withdrawing face 21C and acute angle corner portions 21B symmetrically.
Therefore, saw blade 1A has four kinds of sawtooth, forms a point of tooth tooth group [setpattern] by four sawtooth [(first) leading tooth 5, the first follow-up tooth 9 of follow-up tooth 7, second and the 3rd follow-up tooth 11].These four kinds of sawtooth have two kinds of tooth depths.When above-mentioned saw blade 1A being assemblied in band sawing machine and cutting off metal workpiece, as shown in Fig. 1 (A) and Fig. 1 (B), saw blade 1A advances in X direction, along Z-direction incision workpiece.As mentioned above, the leading tooth 5 that tooth depth is the highest cuts workpiece at first.Be formed with inclined plane 15B in the stiff sheet 15 of leading tooth 5, so cutting force concentrates the front-end edge 15A acting on central authorities, leading tooth 5 can cut workpiece well.In addition, leading tooth 5 has symmetrical shape (forming inclined plane 15B symmetrically) relative to the median plane of saw blade 1A, so pass through the incision of front-end edge 15A, saw blade 1A is directed along cutting direction X.Its result, can suppress the vibration of the thickness direction (transverse direction in Fig. 2 (A) ~ Fig. 2 (E)) of the saw blade 1A orthogonal with cutting direction X, can obtain can not the good straight ahead [superiorstraight-linestability] of run.
Formed the cutting groove of width W 1 (with reference to Fig. 2 (A)) as the crow flies by leading tooth 5, and after the cutting utilizing leading tooth 5 to carry out, then the first follow-up tooth 7 cuts workpiece, is widened by cutting groove as width W 2.After the first follow-up tooth 7, then the acute angle corner portions 19B of the second follow-up tooth 9 and the 3rd follow-up tooth 11 and 21B is respectively by the opposed section cutting width W3 of cutting groove, is widened by cutting groove as width W 4.
Cutting groove is widened as cutting width W3 during width W 4 is minimum relative to width W 4 from width W2, and (W3 × 2)/W4 is set as about 0.08.That is, the second follow-up tooth 9 and the 3rd follow-up tooth 11 only widen about 4% (both sides altogether about 8%) of the final width W 4 of cutting groove respectively.Such as, when width W 4=2.4mm, width W 3=0.1mm, the incision to opposed section is less.Therefore, the cutting resistance acting on the second follow-up tooth 9 and the 3rd follow-up tooth 11 compared to the follow-up tooth 7 of leading tooth 5, first cutting resistance minimum.Its result, the component perpendicular to above-mentioned section is also less, can suppress the vibration produced because of this component.Because vibration can be suppressed, so can carry out fine finishining accurately to the opposed section of cutting groove.
In addition, cutting width W3 can also be set in below 0.1mm.The less then above-mentioned component of cutting width W3 is less, thus more precisely can carry out fine finishining to section.If consider the wearing and tearing etc. of saw blade 1A, then preferred cutting width W3 is at more than 0.03mm.
In addition, as mentioned above, cutting groove is widened to width W 2 from width W1 by the first follow-up tooth 7.The tooth depth of the second follow-up tooth 9 and the 3rd follow-up tooth 11 is identical with the tooth depth of the first follow-up tooth 7, so the overhang of cutting width W3 is minimum.Therefore, the processing capacity [workload] in the incision direction produced by the second follow-up tooth 9 and the 3rd follow-up tooth 11 is minimum.
Further, the acute angle corner portions 19B of the second follow-up tooth 9 and the 3rd follow-up tooth 11 and 21B only acts on one-sided section respectively, and be formed with withdrawing face 19C, 21C in opposition side.Therefore, even if be subject to stronger impact or larger cutting resistance in the horizontal, the second follow-up tooth 9 and the 3rd follow-up tooth 11 also can prevent to opposition side elastic deformation and collapse tooth.Because can prevent from collapsing tooth, so fine finishining can be carried out accurately to section.That is, the second follow-up tooth 9 and the 3rd follow-up tooth 11 carry out fine finishining to opposite section respectively, so can not be clamped [pinched] between opposed section.
Further, even if only a side of the second follow-up tooth 9 and the 3rd follow-up tooth 11 transversely vibrates, this side also can be only made to carry out elastic deformation to absorb vibration.Therefore, concerning the second follow-up tooth 9 and the 3rd follow-up tooth 11, even if this side transversely vibrates, the opposing party also not by the impact of this vibration, thus can carry out fine finishining to section accurately.
In addition, the above-mentioned saw blade disclosed in patent document 1 and 2 also possesses respectively to the follow-up tooth that opposite section cuts.Therefore, these follow-up teeth also can due to the larger component of transverse direction that produces because of above-mentioned cutting resistance and elastic deformation.But these sawtooth are widened (not fine finishining) the cutting groove formed by leading tooth.That is, the cutting width sum produced because of follow-up tooth is substantially equal to the cutting width of leading tooth.Therefore, in the saw blade disclosed in above-mentioned patent document 1 and 2, have larger cutting resistance in follow-up tooth effect, component described above can become large.Its result, sawtooth easily produces vibration in the horizontal, in the saw blade disclosed in above-mentioned patent document 1 and 2, is difficult to carry out fine finishining to section high accuracy (surface roughness (Rmax) less than 30 μm).
Just section is carried out with regard to high-precision fine finishining, need the oscillation crosswise that good straight ahead and needs suppress less transverse component to bring.Saw blade 1A according to the present embodiment, possess from the outstanding front-end edge 15A of the front-end edge 17A of the first follow-up tooth 7, further, the leading tooth 5 forming inclined plane 15B symmetrically cuts workpiece at first, so can obtain good straight ahead and effectively suppress oscillation crosswise.
In addition, the first follow-up tooth 7 is widened the cutting groove formed by leading tooth 5, and the second follow-up tooth 9 and the 3rd follow-up tooth 11 pairs of sections carry out fine finishining (not widening cutting groove).That is, the second follow-up tooth 9 and the 3rd follow-up tooth 11 are for suppressing transverse component to carry out fine finishining accurately to section and the special sawtooth of fine finishining (compared to cutting groove widen the sawtooth that the precision of more paying attention to section improves).Therefore, saw blade 1A according to the present embodiment, more precisely can carry out fine finishining to section.
[the second embodiment]
Fig. 3 (A), Fig. 3 (B) and Fig. 4 (A) ~ Fig. 4 (F) represents the saw blade 1B of the second embodiment.In the saw blade 1B of present embodiment, same-sign is marked to the structural element played with the saw blade 1A identical function of the first embodiment, and the repetitive description thereof will be omitted.
The saw blade 1B of present embodiment possesses the structure adding the second leading tooth 23 (with reference to Fig. 4 (D)) between the first follow-up tooth 7 and the second follow-up tooth 9 of the saw blade 1A of the first embodiment.The tooth depth of tooth depth ratio (first) the leading tooth 5 of the second leading tooth 23 is lower, and higher than the tooth depth of the first follow-up tooth 7.The stiff sheet (the 4th) 25 of the second leading tooth 23 has the wide and smooth front-end edge 25A of the front-end edge 15A width of comparing leading tooth 5.The two ends of front-end edge 25A are from the inclined plane 15B of leading tooth 5 laterally projecting (with reference to Fig. 4 (A), Fig. 4 (B) and Fig. 4 (D)).In addition, the inclined plane 25B (with reference to Fig. 4 (D)) parallel with inclined plane 15B is formed symmetrically at the two ends of front-end edge 25A.
That is, saw blade 1B has five kinds of sawtooth, forms a point of tooth tooth group by five sawtooth [(first) leading tooth 5, first follow-up tooth 7, the second follow-up tooth 9 of leading tooth 23, second and the 3rd follow-up tooth 11].These five kinds of sawtooth have three kinds of tooth depths.Saw blade 1B has the sawtooth [leading tooth 5, first follow-up tooth 7 and the second leading tooth 23] of three symmetric shapes in a point of tooth tooth group, more than the saw blade 1A of the first embodiment.Therefore, it is possible to suppress oscillation crosswise more in a effective manner, better straight ahead can be obtained.In addition, in saw blade 1B, sawtooth kind is more, so cut-out task is segmented further thus reduces cutting resistance.Therefore, it is possible to suppress vibration.
According to saw blade 1B, compare the saw blade 1A of the first embodiment, more precisely can carry out fine finishining to section.In addition, according to saw blade 1B, cutting resistance can be suppressed further, so blade life can be enhanced further, and, can cut off expeditiously.
[the 3rd embodiment]
Fig. 5 (A), Fig. 5 (B) and Fig. 6 (A) ~ Fig. 6 (G) represents the saw blade 1C of the 3rd embodiment.In the saw blade 1C of present embodiment, mark same-sign to having with the saw blade 1A of above-mentioned embodiment or the structural element of 1B identical function, and the repetitive description thereof will be omitted.
The saw blade 1C of present embodiment possesses following structure, adds the structure of a first follow-up tooth 7 and the 3rd leading tooth 27 (with reference to Fig. 6 (E)) between the second leading tooth 23 and the second follow-up tooth 9 of the saw blade 1B of the second embodiment again.The tooth depth of tooth depth ratio (first) the leading tooth 5 of the 3rd leading tooth 27 is lower, and the tooth depth higher (that is, the tooth depth of tooth 23 leading with second is equal) of ratio the first follow-up tooth 7.The stiff sheet (the 5th) 29 of the 3rd leading tooth 27 has the wide and smooth front-end edge 29A of the front-end edge 25A width of comparing the second leading tooth 23.The two ends of front-end edge 29A are from the inclined plane 25B of the second leading tooth 23 laterally projecting (with reference to Fig. 6 (A), Fig. 6 (D) and Fig. 6 (E)).In addition, the inclined plane 29B (with reference to Fig. 5 (E)) parallel with inclined plane 25B is formed symmetrically at the two ends of front-end edge 29A.
Namely, saw blade 1C has six kinds of sawtooth, forms a point of tooth tooth group by seven sawtooth [the follow-up tooth 7 of (first) leading tooth 5, first follow-up tooth the 7, second leading tooth 23, first, the 3rd follow-up tooth 9 of leading tooth 27, second and the 3rd follow-up tooth 11].These six kinds of sawtooth have three kinds of tooth depths.3rd leading tooth 27 is widened further to the cutting groove widened by the second leading tooth 23.It is lower that saw blade 1C possesses tooth depth, and the horizontal width dimensions of front-end edge becomes wider sawtooth [the leading tooth 23 of (first) leading tooth 5, second, the 3rd leading tooth 27 and the first follow-up tooth 7], so cutting resistance is dispersed to these sawtooth.Therefore, cutting resistance is suppressed further, thus effectively can suppress the vibration that produces because of cutting resistance.
In addition, saw blade 1C has the sawtooth [leading tooth 5, first follow-up tooth 7, the second follow-up tooth 7 of leading tooth 23, first and the 3rd leading tooth 27] of five symmetric shapes in a point of tooth tooth group, more than the saw blade 1B of the second embodiment.Therefore, oscillation crosswise is more effectively suppressed, and can obtain better straight ahead.Further, saw blade 1C has two the first follow-up teeth 7 in a point of tooth tooth group, so the approach of the second follow-up tooth 9 and the 3rd follow-up tooth 11 tails off, cutting resistance reduces further.Therefore, the vibration produced because of cutting resistance is suppressed further by the cutting resistance minimizing in incision direction.Its result, according to saw blade 1C, more precisely can carry out fine finishining to section.
In other words, according to the second follow-up tooth 9 and the 3rd follow-up tooth 11 of saw blade 1C, the approach of front-end edge 19A and 21A substantially becomes zero, carries out fine finishining by acute angle corner portions 19B and 21B to section.That is, the second follow-up tooth 9 and the 3rd follow-up tooth 11 substantially only carry out the fine finishining of section, so saw blade 1C can carry out fine finishining further accurately to section.
In addition, as shown in Figure 7, in the front end of stiff sheet, there is front-end edge and the leading tooth (above-mentioned saw blade 1C being added to the stiff sheet 35 of the 4th leading tooth) possessing inclined plane in the both sides of this front-end edge respectively by arranging more than four in a point of tooth tooth group, cutting resistance is dispersed to each sawtooth and suppresses vibration further, and obtain better straight ahead.In addition, the number of the leading tooth in a point of tooth tooth group can arbitrary decision.
Next, the tooth pitch tooth group of sawtooth is described.Fig. 8 (A) and Fig. 8 (B) represents the saw blade 1B of the second above-mentioned embodiment.In saw blade 1B, form a point of tooth tooth group by five sawtooth.In addition, in the tooth pitch tooth group of the sawtooth of saw blade 1B, repeat tooth pitch P1 ~ P3 [the tooth pitch tooth group PP (3) of three].That is, in this case, if consider tooth pitch tooth group and point tooth tooth group, then a sawtooth tooth group (the unit group that sawtooth arranges) is formed by 3 × 5=15 sawtooth.Like this, by making tooth pitch tooth group number different with point tooth tooth group number, complicated sawtooth tooth group can be realized.
Fig. 9 (A) and Fig. 9 (B) represents the saw blade 1C of the 3rd above-mentioned embodiment.A point of tooth tooth group is formed by seven sawtooth.In addition, in the tooth pitch tooth group of the sawtooth of saw blade 1C, repeat P1 ~ P6 [the tooth pitch tooth group PP (6) of six].That is, in this case, if consider tooth pitch tooth group and point tooth tooth group both sides, then a sawtooth tooth group is formed by 6 × 7=42 sawtooth.Like this, tooth pitch tooth group number is different with point tooth tooth group number, and, by increasing, more complicated sawtooth tooth group can be realized.
Next, the experiment investigating the relation of the structure of saw blade and the surface roughness of section has been carried out.In experiment, use the saw blade numbering 1 ~ numbering 4 shown in Figure 10 (A) ~ Figure 10 (D).The saw blade of numbering 1 possesses dovetail sawtooth 31 as Suo Shi Figure 10 (A), the dovetail stiff sheet [dovetailhardchip] that this dovetail sawtooth 31 has the first leading tooth 23 of leading tooth 5, second and contacts with both sides section simultaneously.The acute angle corner portions of dovetail sawtooth 31 is 0.28mm (the total overhang of both sides: 0.56mm/ widens about 23% of cutting groove overall with) from each overhang of the second leading tooth 23.
On the other hand, the saw blade of numbering 2 ~ numbering 4 has identical sawtooth tooth group with the saw blade 1B of such as the second embodiment shown in Fig. 3 (A) ~ Fig. 4 (F).At this, the tooth depth of the sawtooth 5 (stiff sheet 15) of the saw blade of numbering 2 ~ numbering 4 has identical tooth depth with the sawtooth 5 (stiff sheet 15) of the saw blade of numbering 1.In addition, the sawtooth 7 (stiff sheet 17) that the tooth depth of the sawtooth 7 (stiff sheet 17) of the saw blade of numbering 2 ~ numbering 4 has a saw blade of numbering 1 has identical tooth depth.In addition, the tooth depth of the sawtooth 23 (stiff sheet 25) of the saw blade of numbering 2 ~ numbering 4 has identical tooth depth with the dovetail sawtooth 31 of the saw blade of numbering 1.
In addition, the acute angle corner portions 19B of the stiff sheet 19 (the second follow-up tooth 9) of the saw blade of numbering 2 is 0.20mm from the overhang of stiff sheet 17 (the first follow-up tooth 7), and the acute angle corner portions 21B of stiff sheet 21 (the 3rd follow-up tooth 11) is also 0.20mm from the overhang of stiff sheet 17.That is, stiff sheet 19 and 21 (the total overhang of both sides: 0.40mm) widens about 17% of cutting groove width (2.4mm=saws the W4 of wide [kerf]: Fig. 2 (A)).Similarly, the acute angle corner portions 19B of the saw blade of numbering 3 is 0.10mm, acute angle corner portions 21B from the overhang of stiff sheet 17 is also 0.10mm from the overhang of stiff sheet 17.That is, stiff sheet 19 and 21 (the total overhang of both sides: 0.20mm) widens about 8.3% of cutting groove width.Similarly, the acute angle corner portions 19B of the saw blade of numbering 4 is 0.05mm, acute angle corner portions 21B from the overhang of stiff sheet 17 is also 0.05mm from the overhang of stiff sheet 17.That is, stiff sheet 19 and 21 (the total overhang of both sides: 0.10mm) widens about 4.2% of cutting groove width.In addition, the W shown in Figure 10 (A) is the fine finishining amount in the incision direction of each sawtooth.The above-mentioned fine finishining amount of rectangular cartographic represenation of area acute angle corner portions.That is, area less fine finishining amount is less.
The saw blade of numbering 1 ~ numbering 4 is made three respectively with identical material and identical profile of tooth, and label is sample 1 ~ 3.Workpiece is the square material (sectional dimension from the workpiece that workpiece direction of feed is observed: 1680mm × 1680mm) of aluminum.For saw, fast 2000m/ divides cut-out condition, feed-speed 300mm/ divides, bands for band width 80mm, bands for band base material thickness 1.6mm and 0.5/0.8P (unequal blade spacing [variablepitch]).Determining and cutting off area is 1,000,000 cm
2time surface roughness Ra (arithmetic mean roughness Ra:JISB0601:2001/ISO4287:1997).The chart of Figure 11 represents measurement result.
As can be seen from the chart of Figure 11, the surface roughness Ra of the saw blade of numbering 1 is on average about 12 μm.On the other hand, the surface roughness Ra of the saw blade of numbering 2 is on average about 4.7 μm.And the surface roughness Ra of the saw blade of numbering 3 is on average about 3.0 μm, the surface roughness Ra of the saw blade of numbering 4 is on average about 2.7 μm.In addition, according to the application examples of the surface roughness of JISB0601:1990, the roughness classification 6.3S of Rmax is " good machine finishing face ", this Rmax is the value of the maximum height (Rz) of " the correspondence table of the value of 20. various surface roughnesses " of JISB0601:2013, so Rmax6.3S is equivalent to three triangle marks, further, the 3.2 more high accuracy than arithmetic mean roughness (Ra) are meaned.In other words, the numbering 3 of Ra below 3.0 μm achieves in " good machine finishing face " with numbering 4.
Therefore, even if the structure of the sawtooth observed from the cutting direction (direct of travel) of saw blade is similar, by reducing the second follow-up tooth 9 and the 3rd follow-up acute angle corner portions 19B of tooth 11 and the overhang of 21B, also contribute to more precisely carrying out fine finishining to section.In addition, contact the saw blade (numbering 1) of opposed section compared to the both sides for accurately machined sawtooth, the saw blade (numbering 2 ~ numbering 4) contacted with an only side of opposed section for an only side of the both sides of accurately machined sawtooth more precisely can carry out fine finishining to section simultaneously.
In addition, in order to carry out fine finishining accurately further to section, as saw blade numbering 3 and saw blade numbering 4, make less than 8.5% effective especially (surface roughness Ra is below 3.0 μm) widened at cutting groove width of the cutting groove utilizing the second follow-up tooth 9 and the 3rd follow-up tooth 11 to carry out.If suppress like this, then can suppress the oscillation crosswise of the saw blade produced because of cutting resistance, thus fine finishining can be carried out accurately further to section.In addition, if the widening of cutting groove utilizing the second follow-up tooth 9 and the 3rd follow-up tooth 11 to carry out is less than 4.0% of cutting groove width, then the cutting utilizing the second follow-up tooth 9 and the 3rd follow-up tooth 11 to carry out is too small, can not carry out fine finishining accurately to section.In other words, the second follow-up tooth 9 and the 3rd follow-up tooth 11 from each overhang of stiff sheet 17 preferably saw wide less than more than 4.0% 8.5%.
In addition, by making the acute angle corner portions 19B of the second follow-up tooth 9 and the 3rd follow-up tooth 11 and 21B transversely give prominence to respectively from the chamfered section 17B of the first follow-up tooth 7, fine finishining can be carried out accurately to opposite section.At this, the first follow-up tooth 7 possesses chamfered section 17B in both sides, obtain good straight ahead, and section is also cut off better.And afterwards, the section cut off better by the first follow-up tooth 7 is by the acute angle corner portions 19B of the second follow-up tooth 9 and the 3rd follow-up tooth 11 and 21B (in high-precision) fine finishining better.Therefore, the precision of section improves further.
In addition, in the above-described embodiment, " point tooth " of sawtooth is formed by stiff sheet.At this, replace having the sawtooth of stiff sheet, try have studied a point tooth [twosetteeth] (sawtooth themselves bend and form the sawtooth of point tooth) is set.Such as, replace a first follow-up tooth 7, two points of teeth are set, that is, arrange: point of tooth being formed with point tooth suitable with the chamfered section 17B of a side of stiff sheet 17; And be formed with another point of tooth of point tooth suitable with the chamfered section 17B of the opposing party.Further, replace the second follow-up tooth 9 and the 3rd follow-up tooth 11, point tooth of two fine finishining is set.The suitable point dental transition of the follow-up tooth 7 with above-mentioned first is compared to laterally projecting in these fine finishining front end (being equivalent to acute angle corner portions 19B and 21B) of point tooth.
In the saw blade with this point of tooth, widened by cutting groove (being equivalent to the first follow-up tooth 7) point tooth that leading tooth cuts.And, divided a tooth fine finishining by the opposed section of the cutting groove widened by fine finishining use.But as mentioned above, when a point tooth is widened cutting groove, on point tooth, effect has larger cutting resistance, acts on larger component in the horizontal because of this cutting resistance.Therefore, the impact of the vibration produced because of above-mentioned component and easily roughening is subject to by the section that point tooth cuts.
In addition, if be equivalent to point tooth vibration of the first follow-up tooth 7, then the fine finishining overhang change of the front end (being equivalent to acute angle corner portions 19B and 21B) of point tooth.Its result, is difficult to more precisely carry out fine finishining to section.That is, replace the sawtooth with stiff sheet, the saw blade realizing above-mentioned embodiment by arranging above-mentioned point tooth is very difficult.
In addition, the utility model is not limited to above-mentioned embodiment.Such as, in the above-described embodiment, the utility model is applied to bands for band, but also can be applied to circular saw blade.
Claims (8)
1. a saw blade, is characterized in that,
Possess the sawtooth in front end with stiff sheet,
Above-mentioned sawtooth comprises:
Have the first follow-up tooth of first, this first has the trapezoidal shape of front end wider width on the thickness direction of above-mentioned saw blade, and is formed with chamfered section at the two ends of smooth front-end edge;
Have the first leading tooth of second, this second has the front-end edge more outstanding than the above-mentioned front-end edge of above-mentioned first, and the width of smooth front-end edge is narrower than the above-mentioned width of above-mentioned first, and tooth depth is higher than above-mentioned first tooth depth;
Have the second follow-up tooth of the 3rd, the 3rd has the acute angle corner portions of giving prominence in the direction of the width than the chamfered section of a side of above-mentioned first, and tooth depth is identical with the above-mentioned tooth depth of above-mentioned first follow-up tooth; And
Have the 3rd follow-up tooth of the 3rd, the 3rd has the acute angle corner portions of giving prominence in the direction of the width than the chamfered section of the opposing party of above-mentioned first, and tooth depth is identical with the above-mentioned tooth depth of above-mentioned first follow-up tooth.
2. saw blade according to claim 1, is characterized in that,
Above-mentioned sawtooth also comprises the second leading tooth that the cutting groove that formed above-mentioned first leading tooth is widened,
The tooth depth of above-mentioned second leading tooth is lower than the above-mentioned tooth depth of above-mentioned first leading tooth, and, higher than the above-mentioned tooth depth of above-mentioned first follow-up tooth.
3. saw blade according to claim 2, is characterized in that,
Plural above-mentioned first follow-up tooth is possessed in a sawtooth tooth group.
4. the saw blade according to Claims 2 or 3, is characterized in that,
In a sawtooth tooth group, the sum of above-mentioned second follow-up tooth and the 3rd follow-up tooth is below the sum of above-mentioned first follow-up tooth, above-mentioned first leading tooth and above-mentioned second leading tooth.
5. the saw blade according to any one of claims 1 to 3, is characterized in that,
Above-mentioned first ~ above-mentioned 3rd is formed by the sheet material grinding of same shape.
6. the saw blade according to any one of claims 1 to 3, is characterized in that,
The above-mentioned acute angle corner portions of above-mentioned second follow-up tooth and above-mentioned 3rd follow-up tooth each overhang of comparing above-mentioned first saw wide less than more than 4.0% 8.5%.
7. the saw blade according to any one of claims 1 to 3, is characterized in that,
Above-mentioned second follow-up tooth and above-mentioned 3rd follow-up tooth are configured in the rearmost part of the direct of travel of above-mentioned sawtooth in a sawtooth tooth group.
8. a saw blade, is characterized in that,
Possess the sawtooth in front end with stiff sheet,
Above-mentioned sawtooth comprises: the first leading tooth cutting above-mentioned workpiece when cutting off workpiece in advance; The first follow-up tooth that the cutting groove formed above-mentioned first leading tooth is widened; And accurately machined second follow-up tooth and the 3rd follow-up tooth are carried out to the section of the cutting groove widened by above-mentioned first follow-up tooth,
Above-mentioned first follow-up tooth has the trapezoidal shape of front end wider width on the thickness direction of above-mentioned saw blade, and, there is smooth front-end edge and be formed at the chamfered section at two ends of this front-end edge respectively,
Above-mentioned second follow-up tooth has the acute angle corner portions more outstanding on above-mentioned thickness direction than the above-mentioned chamfered section of a side of above-mentioned first follow-up tooth, and, there is the tooth depth identical with the tooth depth of above-mentioned first follow-up tooth,
3rd follow-up tooth has the acute angle corner portions more outstanding on above-mentioned thickness direction than the above-mentioned chamfered section of the opposing party of above-mentioned first follow-up tooth, and, there is the tooth depth identical with the tooth depth of above-mentioned first follow-up tooth.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-026684 | 2013-02-14 | ||
| JP2013026684 | 2013-02-14 | ||
| PCT/JP2014/051538 WO2014125905A1 (en) | 2013-02-14 | 2014-01-24 | Saw blade |
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| CN204867639U true CN204867639U (en) | 2015-12-16 |
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| CN201490000424.1U Expired - Lifetime CN204867639U (en) | 2013-02-14 | 2014-01-24 | Saw blade |
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| JP (1) | JP6349090B2 (en) |
| CN (1) | CN204867639U (en) |
| WO (1) | WO2014125905A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794645A (en) * | 2019-03-14 | 2019-05-24 | 华侨大学 | A kind of rack saw item |
| CN110480095A (en) * | 2019-08-13 | 2019-11-22 | 湖南泰嘉新材料科技股份有限公司 | A kind of bands for band |
| CN111715941A (en) * | 2020-05-28 | 2020-09-29 | 新昌县智超邦金属材料科学技术研究院 | Bimetal grinding band saw blade |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6247679B2 (en) * | 2015-12-10 | 2017-12-13 | 株式会社アマダホールディングス | Band saw blade manufacturing method and band saw blade |
| JP6337169B1 (en) | 2017-02-24 | 2018-06-06 | 株式会社アマダホールディングス | Hard insert band saw blade |
| CN110899842B (en) * | 2019-12-09 | 2023-12-15 | 辽宁东铄新材料科技有限公司 | Combined band saw blade and manufacturing mode thereof |
| CN111054977B (en) * | 2020-01-13 | 2020-08-21 | 湖南泰嘉新材料科技股份有限公司 | Multi-chip type band saw blade |
| CN112059299B (en) * | 2020-09-02 | 2021-11-16 | 湖南泰嘉新材料科技股份有限公司 | Split-tooth type band saw blade |
| CN113118555A (en) * | 2021-05-14 | 2021-07-16 | 广东日东工具有限公司 | Novel aluminum saw blade |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3049018A1 (en) * | 1980-12-24 | 1982-07-22 | Gerd Höptner | "BANDSAW BLADE FITTED WITH HARD METAL PLATES" |
| DE9206000U1 (en) * | 1992-01-10 | 1992-07-30 | Wilhelm H. Kullmann WIKUS-Sägenfabrik, 3509 Spangenberg | Saw blade |
| JP2540470Y2 (en) * | 1993-07-22 | 1997-07-02 | 天龍製鋸株式会社 | Rotary saw for metal cutting |
| JP2000254821A (en) * | 1999-03-05 | 2000-09-19 | Tenryu Saw Mfg Co Ltd | Rotary saw |
| US6520722B2 (en) * | 1999-07-21 | 2003-02-18 | Simonds Industries, Inc. | Asymmetrical cutting tool tooth form |
| JP4727919B2 (en) * | 2003-12-10 | 2011-07-20 | 株式会社アマダ | Saw blade |
-
2014
- 2014-01-17 JP JP2014006444A patent/JP6349090B2/en active Active
- 2014-01-24 WO PCT/JP2014/051538 patent/WO2014125905A1/en active Application Filing
- 2014-01-24 CN CN201490000424.1U patent/CN204867639U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109794645A (en) * | 2019-03-14 | 2019-05-24 | 华侨大学 | A kind of rack saw item |
| CN110480095A (en) * | 2019-08-13 | 2019-11-22 | 湖南泰嘉新材料科技股份有限公司 | A kind of bands for band |
| CN111715941A (en) * | 2020-05-28 | 2020-09-29 | 新昌县智超邦金属材料科学技术研究院 | Bimetal grinding band saw blade |
Also Published As
| Publication number | Publication date |
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| JP2014176956A (en) | 2014-09-25 |
| WO2014125905A1 (en) | 2014-08-21 |
| JP6349090B2 (en) | 2018-06-27 |
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