JPH11277341A - Manufacture of cutter body and cutter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily form a cutter body of which an included angle with respect to its cutting surface is arbitrarily formed, with a high accuracy. SOLUTION: A wire 1 in a wire-cut electric discharge machine is stretched so as to be provided while its X axial direction is set in a vertical line shape with respect to the vertical direction, and the wire is inclined by a specified angle to Y axial direction perpendicularly intersected with the X axial direction. A cutter raw material (b) which is directed to the upper surface in such a way that its diamond layer b1 will be a flank, corresponds to a situation that the upper surface is inclined as specified so as to be perpendicularly intersected with a vertical line with respect to the wire 1, to be cut off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a cutting object having a diamond layer, which can be easily and in large quantities, and a cutting device.

[0002]

2. Description of the Related Art Heretofore, it has been known that a blade portion of a cutting blade object is provided with a diamond at its cutting edge in order to improve the cutting efficiency and processing quality.

As shown in FIG. 11, a diamond tool material 52 composed of a diamond layer 50 and a base material layer 51 made of a cemented carbide or the like is inclined with respect to the normal direction as shown in FIG. By cutting, as shown in FIG.
The cutting blade object 53 is formed as shown in FIG.

[0004] The cutting blade object 53 exhibits excellent cutting efficiency and processing quality in cutting such as grooving. However, as shown by a dotted line in FIG.
In the formation of a blade object in which the cutting edge 53a is in the form of a set, the side portion of the cutting blade object 53 must be cut and polished in a separate process and cut off. This operation is extremely troublesome, resulting in a large cost increase. In addition, this processing for the very small cutting blade object 53 was technically difficult.

[0005] The cutting blade object 53 has a cutting edge 5
Reference numeral 3a denotes a so-called parallel plane for cutting at a right angle 55 with respect to the blade object main body, and when the material 54 is chamfered as shown in FIG. The angle of attachment of the cutting blade object 53 is varied, or the material 54 is inclined at a predetermined angle with respect to the cutting blade object 53 to correspond.

For this reason, the cutting efficiency is greatly reduced, and the cutting machine is complicated, so that the reduction of the processing cost cannot be achieved.

[0007] In particular, in the production of a cutting device using this cutting blade object, the individual cutting blade objects are fixed to the base metal by brazing, so that each cutting edge is positioned from the center of the base metal. The protrusion of the blade becomes uneven.

[0008] Therefore, the cutting edge of the diamond layer must be polished to make the outer dimensions uniform, and the expensive diamond layer must be cut off. In addition, since the diamond layer is used, the polishing operation is difficult. And so on.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and a wire in a wire-cut electric discharge machine is vertically moved (Z-axis).
The X-axis direction is a vertical line and is stretched and inclined at a predetermined angle in the Y-axis direction orthogonal to the X-axis direction. The blade material is placed on the upper surface so that the diamond layer becomes a flank. A cutting object whose cutting edge angle is arbitrarily formed with respect to a cutting surface by cutting the upper surface at a predetermined inclination perpendicular to the X-axis direction with respect to the wire so as to correspond to the cutting surface. It is an object of the present invention to provide a method for manufacturing a blade object and a blade device, which can easily and precisely form a blade.

[0010]

Means of the present invention for achieving the above object is to use a wire cut electric discharge machine to cut a blade material comprising a diamond layer and a base material layer.
In the method for manufacturing a cutting object that cuts out the diamond layer so as to be positioned at a cutting edge of the cutting object, a wire in the wire-cut electric discharge machine is stretched so as to be positioned in a vertical direction. In the axial direction, a vertical line, and in the Y-axis direction orthogonal to the X-axis direction, it is inclined and stretched at a predetermined angle, the blade material, so that the diamond layer becomes a flank surface Toward the upper surface, the upper surface is made to correspond to the wire with a predetermined inclination with respect to the Y-axis direction orthogonal to the vertical line in the X-axis direction, and the side surface of the formed blade object is cut. A method for manufacturing a blade object to be cut out.

Further, using a wire cut electric discharge machine,
In a method for manufacturing a blade object that is cut out from a blade raw material composed of a diamond layer and a base material layer so that the diamond layer is located at a cutting edge of the blade object, a wire in the wire-cut electric discharge machine is vertically moved. The vertical direction extends in the vertical direction with respect to the X-axis direction and the Y-axis direction orthogonal to the X-axis direction. Facing the upper surface so as to form a plane,
The vertical line in the axial direction is made to correspond at a predetermined inclination angle orthogonal to the vertical direction, and the predetermined rotation angle is turned around the vertical center portion of the blade raw material, and the side surface of the formed blade object is cut. A method for manufacturing a blade object to be cut out.

[0012] Then, using a wire-cut electric discharge machine, the wire is stretched from the blade raw material composed of the diamond layer and the base material layer so as to be positioned in the vertical direction. The direction is a vertical line, and is stretched and inclined at a predetermined angle in the Y-axis direction orthogonal to the X-axis direction,
The blade raw material is directed toward the upper surface so that the diamond layer becomes a flank, and the upper surface is made to correspond to the wire at a predetermined inclination perpendicular to the vertical line in the X-axis direction. A side surface of the body is cut, a blade object cut out so that the diamond layer is located at the cutting edge, a disk-shaped base metal, and provided on the peripheral surface of the base metal toward the center of the base metal. A concave groove for spreading and attaching the blade object so that its blade edge protrudes from the peripheral surface of the base metal; a back seat of the blade object housed in the concave groove and attached to a side surface of the blade object; There is provided a blade device comprising a pressing body housed in a concave groove and abutting against the back surface of the back seat and the other side wall of the concave groove.

Further, the wire is stretched from a raw material of a cutting tool composed of a diamond layer and a base material layer so as to be positioned in a vertical direction by using a wire-cut electric discharge machine. In a direction perpendicular to the direction and the Y-axis direction orthogonal to the X-axis direction, the cutting tool raw material is directed toward the upper surface such that the diamond layer becomes a flank, and the upper surface is connected to the wire. A predetermined inclination angle perpendicular to the vertical line in the X-axis direction is made to correspond to the vertical line, and a predetermined rotation angle is turned around the vertical center of the blade material to cut a side surface of the blade object. A cutting object cut out so that the diamond layer is located on the cutting edge, a disk-shaped base metal, and provided on a peripheral surface of the base metal, and spread toward a center direction of the base metal; The blade edge protrudes from the peripheral surface of the base metal A concave groove to be mounted in the groove, a back seat of the blade object accommodated in the concave groove and attached to a side surface of the blade object, and a back surface of the back seat and another side wall of the concave groove housed in the concave groove. And a pressing body contacted with the cutting tool.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method for manufacturing a blade object and a blade device according to the present invention will be described with reference to the drawings.

In FIG. 1, W is a schematic diagram of a wire-cut electric discharge machine, in which a continuous wire 1 is fed into a wire feeder main body 3 on which an upper die 2 is mounted.
And a unit 5 to which the lower die 4 is attached.

The upper die 2 and the lower die 4 can be arbitrarily moved in a U-axis direction and a V-axis direction orthogonal to the U-axis direction by moving means (not shown) which can be numerically controlled. Correspondingly, the wire 1 held by the upper die 2 and the lower die 4 can also be stretched at an arbitrary angle θ inclined from a vertical state to a predetermined angle in the vertical direction (Z-axis direction).

The arbitrary angle θ does not include 0 ° and 90 °, that is, is in the range of 0 ° <θ <90 °.

Then, the wire cut electric discharge machine W is used to position the diamond layer b1 on the cutting edge 6a from the blade raw material b composed of the diamond layer b1 and the base material layer b2 as shown in FIG. The blade object c is cut out as shown in FIGS. 2 (a) and 2 (b).

The blade material b is fixedly held at a predetermined position in the stretched position of the wire 1 by a holding means 6, and the holding means 6 moves in a 360 ° direction from a horizontal state. The blade material b on the holding means 6 can be rotated 360 degrees around the substantially central position of the blade material b as well as the horizontal position. In the direction of ° at a predetermined angle α, and the cutting at a predetermined angle to the upper surface from the cutting at a right angle to the upper surface of the blade material b can be arbitrarily performed.

Further, the holding means 6 can be set to rotate at an arbitrary rotation angle β by a rotation means (not shown) which can be numerically controlled at the center position thereof. The movement in the direction (X-axis direction) and the vertical direction (Y-axis direction) orthogonal to the horizontal direction (X-axis direction) can also be performed arbitrarily.

First, the method of the first embodiment according to the present invention is as follows.
By operating one or both of the upper die 2 and the lower die 4 (the upper die 2 in this embodiment) of the wire 1 in the wire-cut electric discharge machine W in the vertical direction, the X-axis direction is, for example, In the left-right direction with respect to the front surface of the wire-cut electric discharge machine W, as shown in FIG.

Further, the wire 1 in the wire-cut electric discharge machine W is operated by operating one or both of the upper die 2 and the lower die 4 (the upper die 2 in this embodiment) in the vertical direction. In the Y-axis direction (side direction) orthogonal to the X-axis direction, as shown in FIG. 4 (b), it is stretched so as to be inclined at a predetermined right angle θ, for example, 1 °, with respect to the vertical line y. I have.

Further, the blade material b is turned to the upper surface by operating the holding means so that the outer surface of the diamond layer b1 becomes the flank e (see FIG. 5) of the blade object c. The upper surface is cut in correspondence with the wire 1 at a predetermined inclination α perpendicular to the vertical line y, for example, 22 °, and the side surface of the blade object c is cut and cut out.

As a result, as shown in FIG. 3A, a one-sided set is formed on one side of the blade object c at the cutting edge c1, and a predetermined clearance angle is formed as shown in FIG. 3B. f
Is formed.

Further, the wire 1 in the wire-cut electric discharge machine W has one or both of the upper die 2 and the lower die 4 (the upper die 2 in this embodiment) in the vertical direction (Z-axis direction). By operating, the Y axis direction (side direction) orthogonal to the X axis direction described above
As shown in (c), the cable is inclined so as to incline at a predetermined angle θ leftward with respect to the vertical line y.

Thereafter, when the side surface of the blade object c is cut and cut out, as shown in FIGS. 3B and 3C, both sets are formed on the cutting edge c1 on both sides of the blade object c, and As shown in FIG. 3B, a predetermined clearance angle f is formed.

Next, the method of the second embodiment according to the present invention is as follows.
As shown in FIG. 7A, the wire 1 in the wire-cut electric discharge machine W is moved in the X-axis direction, for example, in the left-right direction with respect to the front of the wire-cut electric discharge machine W, as shown in FIG. It is stretched in a linear shape x perpendicular to the Y-axis direction orthogonal to the axial direction.

Further, in the above-mentioned blade raw material b, the outer surface (surface) of the diamond layer b1 has a flank e of the blade object c.
(See FIG. 5), the upper surface at the time of this cutting is made to correspond to the wire 1 at a predetermined inclination angle α perpendicular to the vertical line, for example, 35.585 °, so that That is, the predetermined inclination angle α is formed with respect to the horizontal base line r.

Further, the blade material b is turned around a vertical center portion p of the blade material b at a predetermined rotation angle β (see FIG. 7B), for example, 34.377 °, and cut. The side of c is cut and cut out.

As a result, the blade object c (FIGS. 8A and 8C) in which the cutting edge c1 and the clearance angle f of the blade object c are formed at one time.
8), and the shape of the cutting edge is shown in FIG.
As shown in (b), a predetermined inclination angle g is formed with respect to the end face of the material a.

According to the blade object c, as shown in FIG. 9, it is possible to chamfer the end surface of the material a at a predetermined inclination.

Further, as shown in FIGS. 5 and 6, the blade object c formed by this embodiment method is
With the configuration of simply attaching the base 8 to the mounting portion 9 of the base 8 and fixing it by the fixing means 10, the above-described chamfering angle can be set, and complicated operations such as turning the blade tool 7 according to the chamfering angle can be performed. Therefore, a complicated structure is not required.

The blade object c is, as shown in FIG.
Locking portions 11 and 12 are formed on one or both of the rake face h and the other side j of the rake face h in the width direction.

The blade object c and the locking portions 11, 1
2 is formed by a wire cut electric discharge machine W in FIG.
As shown by 0 (c), a large amount is performed by a continuous series of operations.

Further, in this example, the wire 1 may be stretched at a predetermined angle θ with respect to the vertical line y, and the predetermined angle θ is orthogonal to the X axis and the X axis. The direction may be any direction with respect to the Y axis, and the inclination may be a combination of the X axis and the Y axis.

Next, a description will be given of an embodiment in which the blade object c manufactured by the above-described embodiment method is fixed to the base metal 8 without brazing, that is, a so-called replacement blade type blade device 7 is formed. .

This blade device 7 is shown in FIGS. 5 and 6 as an example, and includes a base 8, a concave groove 20, and a blade object c.
And the fixing means 10 composed of the backing 21 and the pressing body 22.

The base 8 is formed of a steel material into a disk having a predetermined thickness (relatively thin), and has a mounting hole 8c at the center thereof for mounting to a main shaft (not shown) of a cutting machine. Has been drilled.

The above-mentioned concave groove 20 is provided on the peripheral surface of the base metal 8, and is formed so as to expand toward the center of the base metal 8, that is, is formed in a substantially trapezoidal shape.
Are provided at a plurality of positions, for example, at eight positions over the entire length in the width direction of.

The back surface of the blade object c is brought into contact with one side wall 20a (see FIG. 5) of the concave groove 20, and a blade edge c1 is formed.
Are projected from the peripheral surface of the base 8.

The above-mentioned backing seat 21 is housed in the concave groove 20 and is attached to the side surface of the blade object c, that is, the rake face h, and presses against the side surface of the blade object c and the side surface of the pressing body 22, respectively. A member 13, a connecting member 14 provided continuously below the pressing member 13, and a mounting member 16 provided at a lower end of the connecting member 14 and fitted to a mounting recess 15 provided at a bottom 2 b of the concave groove 20. Having.

The mounting recess 15 and the mounting member 16 are formed in the shape of a circular joint in which at least the pressing member 13 can move toward and away from the blade object c. 15 prevents the back seat 21 from projecting outward in the diameter direction of the base metal 8.

The pressing body 22 is accommodated in the concave groove 20 and is brought into contact with the back surface of the backing 21 and the other side wall 20c of the concave groove 20, so that the bottom of the pressing body 22 and the concave groove 20 are formed. And the bottom portion 20b of the first member is always urged outward in the diametric direction with the elastic machine 17 interposed therebetween.

When the pressing body 22 is pressed by the elastic machine 17, the concave groove 20 is formed in a dovetail shape (dovetail shape), so that the other side wall 20c is pressed against the other side wall 20c of the concave groove 20. The contact of the body 22 is wedge-acted, and the fixing force of the blade object c via the backing 21 is improved, and the outward movement of the pressing body 22 due to the centrifugal force generated when the device A rotates is further reduced. The wedge function ensures the fixing of the blade object c.

As shown in FIG. 5, the above-mentioned elastic machine 17 has a spring-shaped plate piece integrally connected to the pressing body 22, and
There is a mounting member 19 whose outer end is fitted into a mounting recess 18 provided in the bottom 20b of the concave groove 20.

The mounting recess 18 and the mounting member 19 are formed in a circular joint shape, and the mounting member 19 is fitted into the mounting recess 18 from the side of the base metal 8, so that the pressing body 22 is in the concave groove 20. In the free state is prevented.

Therefore, in the blade device 7 of the embodiment of the present invention configured as described above, first, in the concave groove 20 which is largely opened in the base metal 8, the backrest 21 and the pressing body 22 are first attached to the mounting recesses 15, 18 for each mounting member 1
6, 19 are fitted.

After the pressing body 22 is pushed down against the spring force of the elastic machine 17, the blade object c is attached to the mounting wall 8a in a state where the space between the mounting wall 8a and the backrest 21 is widened. When the pressing body 22 is released, the pressing body 22 moves outward from the base metal 8 while being in contact with the other side wall 20 c of the concave groove 20 and the side surface of the backing seat 21 by the lifting force of the elastic machine 17. Therefore, the blade object c is strongly pressed to the one side wall 8a via the backing 21 by the wedge action with the concave groove 20, and the blade object c is fixed to the base metal 8.

In this manner, the blade object c is fixed to the remaining concave groove 20 and the completed blade tool 7 is attached to a cutting machine to process the material. The cutting process is performed. For example, even if the width direction dimension of the blade object c is thin, that is, even if the processing width is narrow with respect to the material, the blade object c can be opposed or rotated at the time of cutting. There is no protrusion or delusion due to centrifugal force, stable processing of the material can be performed, and harm to the operator due to scattering of the blade object c or the like is prevented.

In FIG. 5, reference numerals 35 and 36 denote tool holes used for tightening and removing the blade object c.
By pressing the tool around the holes 5 and 36 and rotating the tool with the hole 36 as a fulcrum, the pressing body 22 moves up and down to form a gap in the concave groove 20 or to perform pressure contact in the concave groove 20. .

Further, since the backing 21 is formed separately from the base 8, depending on the material to be processed, when the backing 21 is severely abraded due to the interference of cuttings or the like, the base 2 A material harder than 8 can be selected.

According to this blade device 7, when the blade object c is worn or damaged, it can be easily replaced, that is, a so-called replaceable blade type effect is exhibited. The adjustment can be performed by polishing the bottom part c2 of the blade object c. Since the bottom part c2 is made of a material such as a super hard material which is relatively easy to be polished as compared with diamond, the processing becomes easy.

[0053]

The present invention constructed as described above uses a wire-cut electric discharge machine to easily and highly precisely cut a blade object whose blade edge is inclined at a predetermined angle with respect to the blade object body. Forming can greatly improve the cutting efficiency for the material, and can also simplify the structure of the blade device main body and reduce the processing cost.

In particular, since the blade body can be formed in different shapes with respect to the upper and lower sides thereof, the blade portion can be formed in an arbitrary shape according to the material to be processed.

A replaceable blade type can be provided for the base metal so that the blade object can be replaced freely, and a blade apparatus can be provided at low cost. And so on.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic configuration of a wire-cut electric discharge machine used for a method of manufacturing a blade object according to the present invention.

FIG. 2 is a perspective view showing a blade raw material formed in FIG. 1;

FIG. 3 shows a blade object formed in FIG. 1;
(A) is a perspective view and (b) is a side view.

FIG. 4 is a schematic explanatory view showing a first embodiment of a method for manufacturing a blade object according to the present invention.

FIG. 5 is an explanatory diagram showing a main part of a state where the blade object formed in FIG. 4 is attached to a blade device.

FIG. 6 is an explanatory view showing substantially the entire mounting state of the blade object formed in FIG. 4 to the blade device.

7A and 7B schematically show a second embodiment of the method for manufacturing a blade object according to the present invention, wherein FIG. 7A is a front view, FIG. 7B is a plan view of the blade material in FIG. c) is a plan view of the upper surface of the blade raw material in FIG.

8 shows the blade object formed in FIG. 7,
(A) is a perspective view, (b) is a side view, and (c) is a front view.

FIG. 9 is an explanatory view showing a processing state by the blade object formed in FIG. 7;

FIG. 10 is an explanatory view showing another embodiment of the embodiment of the method for manufacturing a blade object according to the present invention.

FIG. 11 is an explanatory view showing a cutting state of a conventional cutting blade object.

FIG. 12 is an explanatory view showing the blade object formed in FIG. 11;

FIG. 13 is an explanatory diagram showing a processing state by the blade object formed in FIG. 11;

[Explanation of symbols]

 W wire cut electric discharge machine b blade material b1 diamond layer b2 base material layer c blade object c1 blade edge e flank p vertical center 1 wire 8 base metal 20 concave groove 21 backing plate 22 press body

Claims (4)

[Claims] 1. A method of manufacturing a cutting object using a wire-cut electric discharge machine, which cuts out a cutting tool raw material including a diamond layer and a base material layer so that the diamond layer is positioned at the cutting edge of the cutting object. The wire in the wire-cut electric discharge machine is stretched so as to be positioned in the up-down direction, and the up-down direction is a vertical line in the X-axis direction, and in the Y-axis direction orthogonal to the X-axis direction. Is stretched to be inclined at a predetermined angle, the blade material is directed toward the upper surface so that the diamond layer becomes a flank, and the upper surface is perpendicular to the X-axis direction with respect to the wire. Is a method for manufacturing a blade object, wherein the blade object is made to correspond to the orthogonal Y-axis direction at a predetermined inclination, and the side surface of the formed blade object is cut and cut out. 2. A method for manufacturing a blade object, wherein a wire cut electric discharge machine is used to cut out a blade material comprising a diamond layer and a base material layer so that the diamond layer is positioned at the cutting edge of the blade object. The wire in the wire-cut electric discharge machine is stretched so as to be positioned in the up-down direction, and the up-down direction is stretched in a line perpendicular to the X-axis direction and the Y-axis direction orthogonal to the X-axis direction. Then, the blade raw material faces the upper surface such that the diamond layer becomes a flank, and forms a predetermined inclination angle perpendicular to the X-axis direction perpendicular to the wire with respect to the wire. A method for manufacturing a blade object, comprising: turning a predetermined rotation angle about a vertical center portion of the blade material to cut and cut a side surface of the formed blade object. 3. A wire cutting electric discharge machine is used to stretch a wire from a blade material consisting of a diamond layer and a base material layer so as to be positioned in a vertical direction. The direction is a vertical line, and it is stretched and inclined at a predetermined angle in the Y-axis direction orthogonal to the X-axis direction, and the blade raw material is directed to the upper surface so that the diamond layer becomes a flank. The upper surface is made to correspond to the wire at a predetermined inclination perpendicular to the vertical line in the X-axis direction,
By cutting the side surface of the blade object, the blade object cut out so that the diamond layer is located at the cutting edge, a disk-shaped metal base, and provided on the peripheral surface of the metal base toward the center of the metal base. A concave groove for attaching the blade object so that its blade edge protrudes from the peripheral surface of the base metal; a back seat of the blade object accommodated in the concave groove and attached to a side surface of the blade object; A cutting tool device comprising: a pressing body housed in the concave groove and abutting against the back surface of the back seat and the other side wall of the concave groove. 4. A wire cutting electrical discharge machine is used to stretch a wire from a blade material comprising a diamond layer and a base material layer so as to be positioned in the vertical direction. In a direction perpendicular to the direction and the Y-axis direction orthogonal to the X-axis direction, the cutting tool raw material is directed toward the upper surface such that the diamond layer becomes a flank, and the upper surface is connected to the wire. The vertical line in the X-axis direction is made to correspond at a predetermined inclination angle orthogonal to the vertical line in the X-axis direction, and the side surface of the blade object is cut by rotating a predetermined rotation angle around the vertical center of the blade material. A blade object cut out so that the diamond layer is located at the cutting edge, a disk-shaped base metal,
A concave groove provided on the peripheral surface of the base metal and extending toward the center of the base metal, and the blade object is accommodated in the concave groove for mounting the blade so that the cutting edge protrudes from the peripheral surface of the base metal. A back body of the blade object attached to a side surface of the blade object, and a pressing body housed in the concave groove and brought into contact with the back surface of the back seat and another side wall of the concave groove. A knife device characterized by the above-mentioned.