WO2006123652A1

WO2006123652A1 - Band saw and method of manufacturing band saw

Info

Publication number: WO2006123652A1
Application number: PCT/JP2006/309730
Authority: WO
Inventors: Seiki Takano
Original assignee: Asahi Diamond Industrial Co., Ltd.
Priority date: 2005-05-17
Filing date: 2006-05-16
Publication date: 2006-11-23
Also published as: JP2006320983A; JP4408425B2

Abstract

A band saw and a method of manufacturing the band saw. The band saw comprises a band-like flat plate-shaped base metal (1) and a blade part (4) formed by fixing abrasive grains to one end edge part (3) of two end edge parts (2) and (3) extending in the longitudinal direction of the base metal (1). Recessed patterns are formed in one surface of the two surfaces of the base metal (1). Projected patterns are formed on the other surface at positions facing the recessed patterns. Thus, the band saw having excellent rigidity, excellent sharpness, and high cutting accuracy can be provided.

Description

Specification

Band saw and method of manufacturing band saw

Technical field

[0001] The present invention relates to a band saw and a method for manufacturing the band saw.

Background art

Patent Documents 1 and 2 listed below describe a band saw (endless cutter) used for grooving or cutting of a workpiece such as a silicon ingot. Such a band saw includes a base metal having a band-like flat plate shape made of metal, and the base metal has a blade portion at one of two end edges extending in the longitudinal direction. At this blade, superabrasive grains such as diamond are electrodeposited on the base metal!

[0003] FIG. 5 shows a usage form of the band saw described above. As shown in FIG. 5, when the band saw 11 is used for grooving or cutting of the workpiece 12, the band-shaped base metal 13 is used in a state of being suspended between two pulleys 14 and 15. The Of the pulleys 14 and 15, for example, when the pulley 14 is rotationally driven by a motor or the like, the base metal 13 travels around. As the base metal 13 travels around, the blade 16 also travels around. As the blade portion 16 travels in this manner, the workpiece 12 can be grooved or cut.

Patent Document 1: Japanese Patent Application Laid-Open No. 63-283870

Patent Document 2: JP-A 63-300874

Disclosure of the invention

Problems to be solved by the invention

[0004] In the band saw described in Patent Document 1, a metal reinforcing base is provided on the surface of the base metal. Since the rigidity of the base metal is improved by this reinforcing base, the base metal will be shaken. Therefore, it is said that this band saw is expected to improve cutting accuracy. However, in this case, since the thickness is increased by the amount of the reinforcing base provided on the base metal surface, the gap between the base metal and the workpiece becomes narrower than in the case where the reinforcing base is not provided. Therefore, a large friction is generated between the base metal and the workpiece during machining, and it becomes difficult to discharge chips and coolant (coolant), so it is difficult to maintain a good sharpness. [0005] The band saw described in Patent Document 2 is provided with a plurality of grooves and holes on the surface of the base metal. These grooves and holes reinforce the longitudinal pulling force generated at the portion where the blade portion of the base metal is running around. The increased pulling force suppresses the vibration of the blade and enables precision machining. However, the thickness of the base metal is thin at the groove provided on the surface of the base metal, and part of the base metal is penetrated through the hole provided in the base metal and the front and back are penetrated. Yes. For this reason, the rigidity of a base metal will fall.

[0006] Accordingly, an object of the present invention is to provide a band saw and a method for manufacturing the band saw that have excellent rigidity, good sharpness, and high cutting accuracy.

Means for solving the problem

[0007] The band saw according to the present invention is provided with a base metal having a band-shaped flat plate shape and abrasive grains fixedly attached to one of the two end edges extending in the longitudinal direction of the base metal. A concave pattern is provided on one surface of the two surfaces of the base metal, and a convex pattern is provided on the other surface at a position corresponding to the concave pattern. To

[0008] According to the present invention, of the two surfaces of the base metal, one surface is provided with a concave pattern, and the other surface is provided with a convex pattern at a position facing the concave pattern. The With this uneven pattern, the base metal has excellent rigidity, and the runout of the blade portion is reduced. Therefore, a base metal having good straightness in processing can be obtained. Here, the straightness of machining is the property that the traveling direction of the base metal is maintained when machining the workpiece, and high machining accuracy can be realized if the straightness of machining is good. Furthermore, even when the base metal is made thinner, sufficient rigidity can be secured to the base metal. For this reason, when cleaning the workpiece, the gap between the base metal and the workpiece becomes narrow, causing large friction between the base metal and the workpiece, and chips and coolant (coolant) are discharged. Etc. can be avoided, and a good sharpness can be secured.

[0009] The band saw according to the present invention is provided with a base metal having a band-shaped flat plate shape and abrasive grains fixed to one of the two end edges extending in the longitudinal direction of the base metal. The surface of the base metal is provided with a concave pattern and a convex pattern formed by press molding.

[0010] According to the present invention, the concave pattern and the convex pattern are provided on the surface of the base metal. The base metal has excellent rigidity, and the vibration of the blade portion is reduced. Therefore, a base metal having good straightness in caloe can be obtained. Furthermore, even if the base metal is made thinner, sufficient rigidity can be secured for the base metal. For this reason, when cleaning the workpiece, the gap between the base metal and the workpiece becomes narrow, causing large friction between the base metal and the workpiece, and inconvenience such as chipping and coolant being discharged. Can be avoided and a good sharpness can be secured. Moreover, since press molding is used, the concave pattern and the convex pattern can be easily provided on the surface of the base metal.

[0011] Furthermore, in the band saw according to the present invention, a concave pattern and a convex pattern may be provided on a portion of the surface of the base metal where the blade portion is provided, and the blade portion of the surface of the base metal may be provided. A concave pattern and a convex pattern may be provided in a region excluding the portion provided with.

[0012] In the band saw according to the present invention, the concave / convex pattern region provided with the concave pattern and the convex pattern may be provided over the entire area of the base metal. In this way, the rigidity of the base metal can be further increased, and slippage with respect to the pulley on which the base metal is mounted can be reduced.

In the band saw according to the present invention, the concave / convex pattern region provided with the concave pattern and the convex pattern includes a first belt-shaped region extending in the longitudinal direction of the base metal in the vicinity of one end edge portion, and one And a second belt-like region extending in the longitudinal direction of the base metal in the vicinity of the other edge portion different from the above. In this way, the rigidity of the base metal can be effectively increased with a small uneven pattern region.

[0014] In the band saw according to the present invention, the concave / convex pattern region provided with the concave pattern and the convex pattern includes a plurality of band-shaped regions extending between one end edge and the other end edge, The plurality of belt-like regions may be arranged with a gap in the longitudinal direction of the base metal. In this way, it is possible to increase the discharge of chips and coolant while increasing the rigidity of the base metal.

[0015] Further, in the band saw according to the present invention, the plurality of band-like regions may be inclined in the opposite direction to the circumferential running direction of the base metal. In this way, chips and coolant are discharged more smoothly.

[0016] Further, the band saw manufacturing method according to the present invention uses a base metal having a band-shaped flat plate shape. A step of providing a concave pattern and a convex pattern by press molding on the surface of the base metal, and fixing the abrasive grains to one of the two edge parts extending in the longitudinal direction of the base metal. And a step of providing a blade portion.

[0017] According to the present invention, the concave pattern and the convex pattern can be easily provided on the surface of the base metal by press molding. In addition, in conventional band saws, the base metal is subjected to a waisting process to improve the base metal strength, achieve stable base metal movement, and increase the tension at the blade, thereby achieving high precision force. ing. However, for example, it is difficult to carry out a rough waisting process on a thin base metal of 0.3 mm or less. Even with such a thin base metal that is difficult to insert into the waist, the press molding according to the present invention can be performed, and the same effect as the waist insertion can be obtained. Accordingly, the press molding according to the present invention can be used in place of the conventional waist force.

In the present invention, after providing the concave pattern and the convex pattern, both ends in the longitudinal direction of the base metal may be welded to be processed into an endless shape, or the base metal is processed into an endless shape. Later, a concave pattern and a convex pattern may be provided on the surface of the base metal. Further, the base metal included in the band saw of the present invention may be an endless base metal in which both ends in the longitudinal direction of the flat plate shape are joined by welding or the like, or a flat plate having both ends in the longitudinal direction. Even a base metal in shape.

The present invention will become more fully understood from the following detailed description and the accompanying drawings. These are given for illustration only and should not be considered as limiting the invention.

The invention's effect

[0020] According to the present invention, it is possible to provide a band saw and a method for manufacturing the band saw that are excellent in rigidity, have good sharpness and high cutting accuracy.

Brief Description of Drawings

[0021] [Fig. 1] (a) is a view showing the state of the base metal surface of the band saw according to the embodiment, and (b) is a table taken along the line I-I shown in (a). It is sectional drawing of gold | metal | money.

FIG. 2 is a diagram showing a usage pattern of the band saw according to the embodiment.

FIG. 3 is a flowchart for explaining a method of manufacturing a band saw according to the embodiment. [FIG. 4] (a) to (e) are views showing states of other base metal surfaces of the band saw according to the embodiment.

FIG. 5 is a view showing a usage pattern of a conventional band saw.

Explanation of symbols

[0022] 1 metal

10, 10a, 10b, 10c, 10d, lOe

2, 3 edge

4 Blade

5, 5a, 5b, 5c, 5d, 5e

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment to which the present invention is applied will be described with reference to FIGS. 1 to 3. In the following description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

[0024] Fig. 1 (a) is a view showing the state of the base metal surface of the band saw according to the embodiment, and Fig. 1 (b) is a cross-sectional view of the base metal along line II shown in Fig. 1 (a). is there. FIG. 2 is a view showing a usage pattern of the band saw according to the embodiment, and FIG. 3 is a flowchart for explaining a method of manufacturing the band saw according to the embodiment.

[0025] As shown in Fig. 1 (a) and Fig. 2, the node saw 10 includes an endless base metal 1. This base metal 1 is made of a flexible metal plate having a thin band-like flat plate shape (for example, a high-tensile steel plate such as stainless steel or steel). The width of the base 1 is, for example, about 15 to 150 mm, the circumference is, for example, about 1000 to 120,000 mm, and the thickness is, for example, about 0.1 to 1.5 mm. Of the two end edges 2 and 3 of the base metal 1, the end edge 3 is provided with a blade 4. The blade portion 4 is provided, for example, by super-coating a diamond or the like on the end edge portion 3 of the base 1 by metal bonding. For example, the average particle size of this super-arbor is about 40 to 900 μm.

[0026] The surface of the base metal 1 is provided with, for example, 3 to 15 belt-like waist insertion portions (not shown) in the longitudinal direction. The depth of the waist portion is, for example, about 5 to 150 / ζ πι. Furthermore, the concave and convex pattern areas 5 (shaded areas in Fig. 1 (a)) are provided on the two surfaces of the base metal 1, respectively. The concavo-convex pattern regions 5 provided on the surface are at positions facing each other. In the concavo-convex pattern region 5, a concavo-convex pattern (concave pattern and convex pattern) formed by press molding such as an embossing cage is provided on the surface of the base 1. In this concavo-convex pattern, a convex pattern is provided on the other surface at a position opposite to the concave pattern, with respect to the concave pattern provided on one surface of the two surfaces of the base metal. That is, as shown in FIG. 1 (b), the convex portion 51 and the concave portion 52 provided in the concave / convex pattern region 5 are provided at positions facing each other, and the height D1 of the convex portion 51 and the depth of the concave portion 52 are provided. Both D2 are, for example, about 5 to 500 m. Various patterns can be used as the concavo-convex pattern provided in the concavo-convex pattern region 5. Such a concavo-convex pattern may be constituted by a plurality of grooves or protrusions by press molding, or may be constituted by a plurality of depressions or protrusions. Furthermore, the concave / convex pattern may be provided by press-molding the base metal 1, or may be provided by using a saddle when the base metal 1 is manufactured.

[0027] As shown in FIG. 2, when the band saw 10 described above is used for grooving or cutting of a workpiece, the base metal 1 is used in a state of being suspended between two pulleys 14 and 15. It is. Of the pulleys 14 and 15, for example, the pulley 14 is driven to rotate by a motor or the like, so that the base 1 travels around. As the base metal 1 circulates, the blade 4 also circulates. As the blade 4 travels in this manner, the workpiece 12 can be grooved or cut.

Next, a method for manufacturing the band saw 10 will be described with reference to FIG. First, prepare an endless base metal 1 consisting of a metal plate having a thin band-like flat plate shape (for example, high-tensile steel plate such as stainless steel, steel, etc.) joined together by welding or the like (step) Sl). Next, waist insertion is performed along the longitudinal direction of the base metal 1 to form 3 to 15 belt-like waist insertion portions (not shown) (step S2). After this placement, one or both of the two surfaces of the base metal 1 are subjected to press molding, thereby providing an uneven pattern (uneven pattern region 5) on these two surfaces (step S3). After that, superabrasive grains such as diamond are electrodeposited on the edge 3 of the base metal 1 and fixed by metal bonding to provide the blade 4 (step S4). The band saw 10 is manufactured by the above steps S1 to S4. Na The above manufacturing method is an example. After the metal plate is press-molded, both ends in the longitudinal direction of the metal plate may be joined together by welding or the like to be added to the endless base metal 1. , You can save your waist.

[0029] As described above, by providing the concave / convex pattern on the surface of the base metal 1 included in the band saw 10, the base metal 1 has excellent rigidity, and the deflection of the blade portion 4 is reduced. Therefore, the base metal 1 having a good straightness of the carriage can be obtained. Furthermore, even when the thickness of the base metal 1 is reduced to, for example, about 0.1 to 0.5 mm, sufficient rigidity can be secured for the base metal 1. Therefore, when the workpiece is machined, the gap between the metal base 1 and the workpiece becomes narrow, and during machining, a large friction is generated between the metal base 1 and the workpiece, and chips and coolant are not easily discharged. It is possible to avoid inconveniences such as, and to ensure a good sharpness. Also, since press molding is used, the base metal

An uneven pattern can be easily provided on the surface of 1. In addition, since the uneven pattern is provided on the surface of the blade part 4, the blade part 4 comes into intermittent contact with the workpiece, and the friction generated in the blade part 4 is reduced, and chips and coolant are not generated. It becomes easy to discharge through this uneven pattern. For this reason, the cutting edge 4 can achieve an excellent sharpness. Further, the same effect as the waisting process can be easily obtained by applying press forming that is easy to process to the surface of the base metal 1 without performing the conventional waisting process.

In addition, since the concave / convex pattern region 5 over almost the entire area of the base metal 1 is provided with the concave / convex pattern, the surface of the base metal 1 is provided with many irregularities. Therefore, in the state where the node saw 10 is mounted on the pulleys 14 and 15, relatively large friction is generated between the surface of the base metal 1 and the surfaces of the pulleys 14 and 15, so the base metal 1 The surface of pulleys 14 and 15 becomes less slippery when traveling. As a result, the band saw 10 can travel around efficiently. Here, the surfaces of the pulleys 14 and 15 may be roughened. In this case, the base metal 1 is less likely to slip on the surfaces of the pulleys 14 and 15, so that the band saw 10 can travel efficiently.

[0031] The present invention is not limited to the band saw 10 described above. For example, the shape of the concavo-convex pattern region 5 is not limited to that shown in FIG. 1 (a), and may be the shape shown in FIGS. 4 (a) to 4 (e). In the band saw 10a shown in FIG. 4 (a), the concavo-convex pattern region 5a provided with the concavo-convex pattern is a strip-shaped region extending in the longitudinal direction of the base metal 1. This band-like region is provided in a region separated by about 5 to: LOmm from the edge portion 2 and the edge portion 3, and has a width of about 5 to: LO mm. Therefore, in this band saw 10a, since the uneven pattern region 5a is provided in the vicinity of the blade portion 4 and in the vicinity of the back portion (region including the edge portion 2), the vicinity of the blade portion 4 and the vicinity of the back portion are provided. Rigidity is improved and the vibration generated in the blade 4 can be reduced. Therefore, this band saw 10a has good straightness.

Note that the band-like region (uneven pattern region 5a) provided with the uneven pattern is not limited to the one provided at a position separated from the edge portion 3 as shown in FIG. 4 (a). In the band saw 10b shown in FIG. 4 (b), the concavo-convex pattern region 5b corresponding to the band-like region is provided only in the region including the blade portion 4. In the band saw 10b, since the blade portion 4 is included in the uneven pattern region 5b, the rigidity of the blade portion 4 is particularly improved. For this reason, since the runout generated in the blade portion 4 can be reduced, the band saw 10b has a good straightness in processing. Furthermore, since the uneven pattern is formed on the surface of the blade portion 4, the discharge of chips and coolant generated at the blade portion 4 of the edge portion 3 becomes smoother. For this reason, the blade part 4 is excellent in sharpness.

Further, in the band saw 10c shown in FIG. 4 (c), the concavo-convex pattern region 5c provided with the concavo-convex pattern extends from the edge 3 to the edge 2 substantially perpendicular to the longitudinal direction of the base metal 1. It is an approximately rectangular belt-like region that extends with force. A plurality of the uneven pattern regions 5c are provided at predetermined intervals in the longitudinal direction of the base 1. Therefore, in this band saw 10c, chips and coolant generated at the blade portion 4 of the end edge portion 3 are smoothly discharged through the adjacent uneven pattern region 5c. For this reason, the band saw 10c has a good sharpness.

Note that the above-described substantially rectangular belt-like region is not limited to the one extending substantially perpendicular to the longitudinal direction of the base metal 1 as shown in FIG. 4 (c). In the band saw 10d shown in FIG. 4 (d), the edge 2 side of the above-described substantially rectangular belt-like region has a shape (uneven pattern region 5d) inclined in the direction opposite to the circumferential traveling direction as shown in the figure. Therefore, the discharge of chips and coolant generated at the edge 4 of the edge 3 becomes smoother. For this reason, the band saw 10d has good sharpness and straightness of processing.

[0036] In the band saw 10e shown in Fig. 4 (e), the uneven pattern has a plurality of X-shaped regions. Is provided in the concave / convex pattern region 5e formed continuously in the longitudinal direction of the base metal 1. That is, in the uneven pattern region 5e, two regions V extending from the end edge 3 toward the end edge 2 are inclined in opposite directions (reverse directions) with respect to the longitudinal direction. Yes. Thus, since the region force provided with the uneven pattern extends in a plurality of different directions, the rigidity of the base metal 1 is further improved. For this reason, the fluctuation of the base metal 1 can be reduced. Therefore, the band saw 10e has good straightness.

Claims

The scope of the claims

[1] A base metal plate having a band shape,

A blade portion provided with a barrel fixed to one of the two edge portions extending in the longitudinal direction of the base metal;

A band saw characterized in that a concave pattern is provided on one surface of the two surfaces of the base metal, and a convex pattern is provided on the other surface at a position facing the concave pattern.

[2] A base metal plate having a band shape,

A band saw having a concave pattern and a convex pattern formed by press molding on a surface of the base metal.

[3] The band saw according to claim 1 or 2, wherein the concave pattern and the convex pattern are provided in a portion of the surface of the base metal where the blade portion is provided.

[4] The van according to claim 1 or 2, wherein the concave pattern and the convex pattern are provided in a region excluding a portion where the blade portion is provided in a surface of the base metal. Dosso.

5. The band saw according to claim 3, wherein the concave / convex pattern region provided with the concave pattern and the convex pattern is provided over the entire area of the base metal.

[6] The concave / convex pattern region provided with the concave pattern and the convex pattern,

A first belt-like region extending in the longitudinal direction of the base metal in the vicinity of the one end edge portion; and a second belt-like region extending in the longitudinal direction of the base metal in the vicinity of the other end edge portion different from the one edge portion. When,

The band saw according to claim 4, characterized by comprising:

[7] The concave and convex pattern region provided with the concave pattern and the convex pattern includes a plurality of band-like regions extending between the one end edge and the other end edge,

5. The band saw according to claim 4, wherein the plurality of belt-like regions are arranged with a gap in the longitudinal direction of the base metal.

8. The band saw according to claim 7, wherein the plurality of belt-shaped regions are inclined in the opposite direction with respect to the circumferential traveling direction of the base metal.

[9] preparing a base metal having a band-like plate shape;

The step of providing a concave pattern and a convex pattern by press molding on the surface of the base metal, and fixing the barrel to one of the two edge parts extending in the longitudinal direction of the base metal Providing process and

A method of manufacturing a band saw, comprising: