JP2003048165A - Rotary disc type machining tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary disc type machining tool capable of changing at least either of machining width and machining angle and corresponding to the change of machining conditions speedily. SOLUTION: This rotary disc type machining tool 1 is provided with a disclike base metal unit 2, a segment 8 and an abrasive material layer 4 mounted through a universal joint 3 in a peripheral fringe part of the base metal unit 2, and a slit 9 and a screw 4 restraining the universal joint 3. The universal joint 3 is composed of a spherical hole 5 in the peripheral fringe part of the base metal unit 2, a spherical body 6 arranged turnably in the spherical hole 5, and a support shaft 7 connected continuously with the spherical body 6. By mounting each segment 8 on an outer peripheral face of the base metal unit 2 through the universal joint 3, the attitude of the segment 8 can be changed to change machining width and machining angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary disk type machining tool used for grinding and polishing stone materials, concrete, glass and the like.

[0002]

2. Description of the Related Art There is a working tool as shown in FIG. 9 as a rotary disk type working tool used for grinding and polishing hard and brittle materials such as stone, concrete and glass. (A) of the figure is a partial front view of the working tool, and (b) is a sectional view taken along line XX of (a). The processing tool 90 includes a disk-shaped base metal 91 mounted on a drive shaft of a grinding machine and a plurality of segments 92 mounted on the outer peripheral surface of the base metal 91 at regular intervals.
Etc. The segment 92 is integrally formed by sintering metal powder containing diamond abrasive grains and adhering it to the base metal 91.

In the conventional machining tool 90, the machining tool 9 is used depending on the machining conditions of the object to be ground or polished.
The width W of the segment 92 forming 0 and the attachment angle of the segment 92 with respect to the base metal 91 are set.

[0004]

When the conventional machining tool 90 is used to groove a workpiece, the width W and the fixed angle of the segment 92 are set in correspondence with the groove width and groove angle to be completed. ing. That is, a dedicated working tool in which the width W and the mounting angle of the segment 92 are set in accordance with the working condition is manufactured in advance, and the working operation is performed using the working tool corresponding to the working condition.

Therefore, as the machining conditions increase, the same number of machining tools is required, and a great deal of time and labor are spent in manufacturing these machining tools. Also, if a dedicated machining tool is not completed, machining work cannot be undertaken. Therefore, when predicting the completion time of the workpiece, it is necessary to add the time required for tool production, which is a factor that delays completion. .

The problem to be solved by the present invention is to provide a large number of rotary disk type machining tools in accordance with machining conditions.
The purpose is to be able to quickly respond to changes in processing conditions by making it possible to change the processing width and processing angle by the segments attached to the base metal.

[0007]

DISCLOSURE OF THE INVENTION The present invention is a rotary disk type machining tool in which a plurality of segments having an abrasive layer are arranged at intervals on the outer peripheral surface of a disk-shaped base metal. Is attached to the outer peripheral surface of the base metal through a universal joint. By mounting the segment on the outer peripheral surface of the base metal through the universal joint, the posture of the segment can be changed, and the processing width and the processing angle by the segment can be changed.

For example, if the direction of change of the orientation of the segment is set to rotate in a plane parallel to the surface including the tangential direction of the outer peripheral surface of the base metal, the machining width of the segment can be changed, and the direction of orientation change of the segment. By changing the direction of rotation in a plane parallel to the plane including the normal direction of the outer peripheral surface of the base metal, the machining angle by the segment can be changed, and the orientation change direction of the segment can be changed in the plane including both of the above. If the direction is set freely, both the processing width and the processing angle of the segment can be changed, and it becomes possible to quickly respond to changes in the processing conditions.

As means for changing the orientation change direction of the segment to rotate in a plane parallel to the plane including the tangential direction of the outer peripheral surface of the base metal, a support shaft in a direction parallel to the tangential direction of the outer peripheral surface of the base metal is used. The means for mounting the segments rotatably, and the means for changing the posture of the segments to rotate in the plane parallel to the plane including the normal line direction of the base metal outer peripheral surface is the A segment can be rotatably attached to a support shaft in a direction parallel to the line direction, and a means for freely changing the posture change direction of the segment in a plane including both of the above is a spherical support. A so-called universal joint provided with a shaft can be used.

Here, it is desirable to provide a fixing mechanism for fixing the segment at an arbitrary position within the range of change in the posture of the segment. As the fixing mechanism, for example, the base metal may be a split type including two members, and the members may be fixed by screws so that the universal joint is sandwiched between the members.

Further, in the rotary disk type machining tool of the present invention, a set of two disk-shaped substrates whose intervals can be adjusted is used as a base metal, and segments are alternately fixed to one substrate and the other substrate. It can also be configured. With such a configuration, by changing the distance between the two substrates, the segments fixed to the respective substrates come close to and away from each other, so that the processing width of the segments changes.

Further, the rotary disk type machining tool of the present invention is
The base metal and the segment may be formed with a concavo-convex portion to be fitted to each other, and the segment may be fixed to the outer peripheral surface of the base metal so that the segment can be detachably attached and the mounting posture can be changed. In this case, as a means for fixing the segment to the base metal, a polygonal cylinder-shaped or spline-shaped locking hole formed in the base metal,
By providing a segment holder having an insertion shaft that can be inserted into and removed from the locking hole, the insertion state of the insertion shaft with respect to the locking hole can be changed at a predetermined angular interval about the insertion shaft. The fixed attitude of the segment with respect to gold can be changed. With such a configuration, it is possible to change the passage area and passage surface of the segment by changing the fixed posture of the segment with respect to the base metal by the segment fixing means, or by replacing the segment with a segment having a different size or shape. The processing width and processing angle can be changed.

[0013]

1 is a partial sectional view showing a rotary disc type machining tool according to a first embodiment of the present invention, FIG. 2 is a partial plan view of the rotary disc type machining tool of FIG. 1, and FIG. 3 is a rotary disc. It is a fragmentary sectional view showing other embodiments of a mold processing tool.

As shown in FIG. 1A, the rotary disk type machining tool 1 of the present embodiment has a drive shaft (not shown) of a machining apparatus.
A removable disk-shaped base metal 2, a plurality of universal joints 3 arranged at regular intervals along the rotation direction of the peripheral edge of the base metal 2, and a segment 4 fixed to the tip of the universal joint 3.
And a slit 9 and a screw 8 which are locking mechanisms for restraining the universal joint 3. The universal joint 3 includes a spherical hole 5 formed in the peripheral portion of the base metal 2, a spherical body 6 rotatably arranged in the spherical hole 5, a support shaft 7 connected to the spherical body 6, and the like. Has been done.

When the screw 8 is loosened, the width of the slit 9 formed in the base metal 2 is expanded and the spherical hole 5 is expanded, so that the segment 4 is rotatable around the spherical body 6 and the supporting shaft 7 is the center. It becomes rotatable. Therefore, when the screws 8 are loosened and all the segments 4 are tilted with respect to the rotation surface of the base metal 2 as shown in FIG. Hole 5 narrows and spherical body 6
Is constrained from moving and the segment 4 is fixed at its tilt angle. In this way, the machining angle can be changed by changing the fixed angle of the segment 4 with respect to the direction of the rotation surface of the base metal 2.

Further, after loosening the screw 8 and rotating all of the segments 4 in the state of FIG. 2 (a) by a fixed angle around the support shaft 7 to the state of FIG. 2 (b), the screws are screwed. When 8 is tightened, the slit 9 and the spherical hole 5 are narrowed, and the spherical body 6 is restrained from moving, and the segment 4 is fixed in that state. Thus, if the fixed angle of the segment 4 with respect to the tangential direction of the rotation circle of the base metal 2 is changed, the base metal 2
The passing area of the segment 4 when the
Since the passing area W1 in (a) is reduced to the passing area W2 in FIG. 2 (b), the working width is reduced. That is, the working width can be changed by changing the fixed angle of the segment 4 with respect to the tangential direction of the rotation circle of the base metal 2.

As described above, since the rotary disc type machining tool 1 can change the machining width and the machining angle, it can quickly respond to the modification of the machining conditions, the versatility is improved, and the work period of the workpiece can be shortened. Can be planned. If a quasi-universal joint is formed by a combination of a polyhedron and a multifaceted hole suitable for this instead of the combination of the spherical body 6 and the spherical hole 5, the joint is constrained only when the surfaces are in contact with each other. As a result, it becomes possible to accurately and uniformly set the fixed angles of a plurality of grindstones.

As shown in FIG. 3, a convex portion 10 is provided on the peripheral portion of the base metal 2, and a universal joint 3 is provided on the peripheral portion of an auxiliary member 11 which can be attached to and detached from the convex portion 10 via a screw 8. With the structure in which the segment 4 is attached, it is possible to replace the universal joint 3 and the segment 4 together with the auxiliary member 11 with respect to the base metal 2. Therefore, in addition to the function of the rotary disk type machining tool 1 described above, It can respond promptly when it is deteriorated or damaged. Further, by exchanging the segment with a different size or shape, the adaptability to changes in the processing conditions is enhanced and the versatility is further improved.

FIG. 4 is a diagram showing a second embodiment of the present invention. The rotary disk-type processing tool 20 of this embodiment is a disk-shaped base metal 22 that can be attached to and detached from a drive shaft (not shown) of the processing apparatus.
, A plurality of support shafts 21 arranged in the tangential direction of the rotation circle of the base metal 22, a base 23 tiltably attached to the support shafts 21, and a segment 2 fixed to the tip of the base 23.
4 and an angle setting mechanism for locking the segment 24 at a set angle.

In the rotary disk type working tool 20, the working angle can be changed by changing the fixed angle of the segment 24 with respect to the rotating surface of the base metal 22, so that the working conditions can be quickly changed. Further, as the angle setting mechanism of the segment 24, when the base 23 is tilted around the support shaft 21,
Since the lock mechanism for fixing the angle by 5 degrees by the ratchet mechanism is provided, the inclination angle of the segment 24 can be changed and fixed by a simple operation, quickly and accurately.

5 and 6 are views showing a third embodiment of the present invention. Rotating disk type machining tool 30 of this embodiment
As shown in FIG. 5, a disc-shaped base metal 32 that can be attached to and detached from the drive shaft 31 of the processing device, a plurality of support shafts 33 arranged in the tangential direction of the rotation circle of the base metal 32, and a support shaft 33. Each of the bases 34 is tiltably attached to the base 34, a segment 35 fixed to the tip of the base 34, and an angle setting mechanism for locking the segment 35 at a set angle.

The angle setting mechanism has a hub member 3 rotatably provided around a drive shaft 31 which is a rotation center of the base metal 31.
6a and 36b, a connecting member 37a that connects the hub member 36a and the base 34, a connecting member 37b that connects the hub member 36b and the base 34, and a screw fixing mechanism 38a that restrains rotation of the hub members 36a and 36b. , 38b are provided.

FIG. 5 shows a state in which the segment 35 is held in a horizontal state, and FIG. 6 shows a state in which the segment 35 is inclined. As shown in FIG. 5B, the segment 35
In the state in which is held horizontally, the left and right connecting members 37a and 37b are wound in the same state on the hub members 36a and 36b, respectively, as shown in FIGS.

When inclining the segment 35, FIG.
As shown in (a), if the left hub member 36a is rotated in a fixed direction and the connecting member 37a is wound around the hub member 36a, as shown in FIG.
b is unwound from the hub member 36b, and the segment 35 inclines as shown in FIG. If the rotation of the hub members 36a and 36b is restricted by the screw fixing mechanisms 38a and 38b in this state, the segment 35 is held in an inclined state. Since the segment 35 can be tilted with respect to the rotation surface of the base metal 32 in this manner, the processing angle can be changed, and the change in the processing condition can be promptly dealt with. The inclination angle of the segment 35 depends on the hub member 36.
It can be finely adjusted by adjusting the rotation angles of a and 36b.

FIG. 7 is a diagram showing a fourth embodiment of the present invention. The rotary disk type machining tool 40 of this embodiment is shown in FIG.
As shown in (a), a plurality of substrates 41 and 42 that are detachably attached to a drive shaft (not shown) and are arranged in the drive axis direction, and a gap adjusting mechanism that changes the gap between the substrates 41 and 42.
A plurality of segments 43 and 44 arranged at regular intervals along the peripheral edges of the substrates 41 and 42 and fixed to one of the substrates 41 and 42 are provided. Segment 43
And 44 are alternately arranged along the rotation direction of the substrates 41 and 42, and the segment 43 is fixed only to the substrate 41,
The segment 44 is fixed only to the substrate 42.

Therefore, if the distance between the substrate bases 41 and 42 is changed, the segments 43 and 44 fixed to the substrate bases 41 and 42 come close to and away from each other, and the passage areas of the segments 43 and 44 expand or contract. . That is, FIG.
As shown in (a), when the substrate base metals 41 and 42 are brought into close contact with each other, the passage region W3 of the segments 43 and 44 is the smallest, but as shown in FIG. 7 (b), between the substrates 41 and 42. When a spacer (not shown) is inserted into the substrate, the gap between the substrates 41 and 42 is widened and fixed with screws (not shown), the segment 4
Since the passage area W4 of 3 and 44 is widened, the substrates 41 and 42 are
The machining width can be changed by changing the interval of, and it is possible to quickly respond to changes in machining conditions.

FIG. 8 is a diagram showing a fifth embodiment of the present invention. The rotary disk type machining tool 50 of this embodiment includes a disk-shaped base metal 51 that can be attached to and detached from a drive shaft (not shown), and a base metal 5.
1, a plurality of spline-shaped locking holes 52 formed at regular intervals, a base 54 having an insertion shaft 53 that can be inserted into and removed from the locking holes 52, and a segment 55 fixed to the base 54.
It has and.

By changing the insertion state of the insertion shaft 53 into the locking hole 52 at a predetermined angular interval about the insertion shaft 53, the fixed posture of the segment 55 with respect to the base metal 51 is changed so that the segment 55 passes through. You can change the area,
The processing width can be changed. Base metal 51 is two members 51
It is divided into a and 51b, and segment 55 is formed by tightening both members 51a and 51b with screws (not shown).
To fix. Further, the passage area and passage surface can be changed by replacing the segment 55 with a segment having a different size or shape, so that not only the processing width but also the processing angle can be changed.

[0029]

The present invention has the following effects.

(1) In a rotary disk type machining tool in which a plurality of segments having an abrasive layer are arranged on an outer peripheral surface of a disk-shaped base metal at intervals, each segment is mounted via a universal joint. By mounting it on the outer peripheral surface of gold, the posture of the segment can be changed, so that the processing width and the processing angle can be changed.

(2) The processing width can be changed by changing the orientation change direction of the segment in a direction parallel to the plane including the tangential direction of the outer peripheral surface of the base metal, and the orientation change direction of the segment can be changed. The processing angle can be changed by rotating in the plane parallel to the plane including the normal direction of the gold outer peripheral surface, and the orientation change direction of the segment can be set freely in the plane including both of the above. Both the processing width and the processing angle can be changed, and it becomes possible to quickly respond to changes in the processing conditions.

(3) By providing a fixing mechanism for fixing the segment at an arbitrary position within the range of change in the posture of the segment, stable processing can be performed, so that workability and processing accuracy can be improved. it can.

(4) A set of two disc-shaped substrates whose distances can be adjusted is used as a base metal, and segments are alternately fixed to one substrate and the other substrate so that the two substrates are separated. By changing the distance between the substrates, the segments fixed to the respective substrates come close to and away from each other, so that the processing width can be changed.

(5) The segment fixing means is provided with a structure in which the base metal and the segment are formed with concavo-convex portions to be fitted to each other and the segment is fixed to the outer peripheral surface of the base metal so that the segment can be detachably attached and the mounting posture can be changed. By changing the fixed posture of the segment with respect to the base metal or replacing it with a segment having a different size or shape, the passage area and passage surface of the segment can be changed, so that the processing width and the processing angle can be changed.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a rotary disk type machining tool of a first embodiment.

FIG. 2 is a partial plan view of the rotary disk type machining tool shown in FIG.

FIG. 3 is a partial cross-sectional view showing another embodiment of the rotary disk type working tool shown in FIG.

FIG. 4 is a partial cross-sectional view showing a rotary disk type machining tool of a second embodiment.

FIG. 5 is a view showing a rotary disk type machining tool of a third embodiment.

FIG. 6 is a view showing a rotary disk type machining tool according to a third embodiment.

FIG. 7 is a view showing a rotary disk type machining tool of a fourth embodiment.

FIG. 8 is a view showing a rotary disk type machining tool of a fifth embodiment.

FIG. 9 is a view showing a conventional rotary disk type machining tool.

[Explanation of symbols]

1,20,30,40,50 Rotating disk type processing tool 2,22,32,51 3 universal joints 4,24,35,43,44,55 segments 5 Spherical hole 6 spherical bodies 7 Support shaft 8 screws 9 slits 10 Convex part 11 Auxiliary member 21,33 spindle 23, 34, 54 base 31 Drive axis 36a, 36b Hub member 37a, 37b Connecting member 41,42 substrate 52 Locking hole 53 Insert shaft W1, W2, W3, W4 Passing area

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Claims (5)

[Claims] 1. A rotary disk type machining tool in which a plurality of segments having an abrasive layer are arranged on an outer peripheral surface of a disk-shaped base metal at intervals, and each segment is connected via a universal joint. A rotating disk type machining tool attached to the outer peripheral surface of the base metal. 2. The rotary disk type machining tool according to claim 1, wherein the direction in which the segment is changed by the universal joint is a direction in which one or both of the machining width and the machining angle by the segment are changed. 3. The rotary disk type machining tool according to claim 1, further comprising a fixing mechanism for fixing the segment at an arbitrary position within the range of change in the posture of the segment. 4. A rotary disk type machining tool in which a plurality of segments provided with an abrasive layer are arranged on an outer peripheral surface of a disk-shaped base metal at intervals, and the two intervals are adjustable. A rotating disk-type machining tool in which one set of disc-shaped substrates is used as a base metal, and segments are alternately fixed to one substrate and the other substrate. 5. A rotary disk type machining tool in which a plurality of segments having an abrasive layer are arranged at intervals on the outer peripheral surface of a disk-shaped base metal, wherein the base metal and the segments are fitted to each other. A rotary disk type machining tool in which the segment is fixed to the outer peripheral surface of the base metal so that the segment is fixed to the outer peripheral surface of the base metal so that the segment can be attached and changed.