JP3312621B2 - Whetstone repair device and whetstone repair method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grindstone correcting device and a grindstone correcting method for correcting a grindstone used for, for example, grinding or cutting.

[0002]

2. Description of the Related Art Conventionally, whetstones used for grinding and cutting work are subject to wear and the like, resulting in deterioration of mechanical accuracy. Therefore, dressing for cleaning and dressing the surface after use has been performed. We are processing. In some cases, truing is performed on the grindstone for the purpose of forming the grindstone.

More specifically, in dressing and truing, a grindstone dresser as shown in FIG. 7 is used. First, a cutting blade is applied to one main surface 100a of a rotating grindstone 100 in the direction of arrow D in FIG. By moving radially on one main surface 100a of the grindstone 100 while pressing 101, the one main surface 100a side of the grindstone 100 is cut. Then, after changing the direction of the grindstone 100, the cutting blade 101 is pressed against the other main surface 100b of the rotating grindstone 100 from the direction of arrow E in FIG. By moving in the radial direction, the other main surface 100b side of the grindstone 100 is cut. Thereby, both sides of the grindstone 100 can be finished.

[0004]

By the way, the above-mentioned grindstone dresser has a problem that as the thickness of the grindstone 100 becomes thinner, the grindstone 100 escapes as shown in FIG. That is, in the conventional grindstone dresser, when the cutting blade 101 is pressed against the main surface of the rotating grindstone 100, the grindstone 100 is elastically deformed, and the cutting blade 101 cannot be cut into the main surface of the grindstone 100. In addition, meandering, bending, and the like occur, and it is extremely difficult to finish the surface of the grindstone 100 with high accuracy.

[0005] The escape of the grindstone 100 may be caused by a reduction in the thickness of the grindstone 100 or by a cutting blade 10 with respect to the grindstone 100.
1 becomes more remarkable as the pressure increases, and it becomes more difficult to cut the cutting blade 101 deeper as the grindstone 100 becomes thinner.

In the above-described conventional grindstone dresser, when dressing or truing is performed on both surfaces of the grindstone 100, after cutting the main surface 100a side of the grindstone 100 shown in FIG. ,
By changing the direction of the grindstone 100, the grindstone 100 shown in FIG.
The other main surface 100b side must be cut by the cutting blade 101.

[0007] For this reason, in the conventional grindstone dresser, the efficiency is low, the processing takes time, and the misalignment or the like when the direction of the grindstone 100 is changed easily occurs.
It was very difficult to finish both sides of the grindstone 100 uniformly.

Accordingly, the present invention has been proposed in view of such a conventional situation, and provides a grindstone correcting apparatus and a grindstone correcting method capable of correcting both surfaces of a grindstone uniformly and in a short time. The purpose is to:

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, a grindstone repairing device according to the present invention is a grindstone repairing device for repairing a grindstone by cutting both principal surfaces of the grindstone while rotating the grindstone. , A grindstone rotating means for rotating the grindstone, a first cutting blade for cutting one main surface of the grindstone, and a second cutting blade for cutting the other main surface of the grindstone opposed to the first cutting blade. And a first stage to which the first cutting blade is attached, the first cutting blade is movable in a direction in which the first cutting blade comes into contact with and separates from one main surface of the whetstone, the first stage and the first stage A second stage to which a second cutting blade is attached, the second cutting blade is movable in a direction in which the second cutting blade comes into contact with and separates from the other main surface of the whetstone, and between the first stage and the second stage. Is mounted on one of the stages so that First sliding means for enabling the second stage and the second stage to move in the thickness direction of the grinding wheel so as to face each other, a third stage to which the second stage is attached, and the second stage And the third above
Second slide means attached to one of the stages so as to be located between the stages, and enabling the second stage to move in the thickness direction of the grinding wheel with respect to the third stage, The first stage and the second stage are attached to any one of the stages, by pressing the other stage in one direction, the first cutting blade until the first cutting blade abuts one main surface of the whetstone The first stage is moved via the first slide means, and the second stage is moved via the first and second slide means under the reaction force from one main surface of the whetstone. The second cutting blade is moved until it comes into contact with the other main surface of the whetstone at a pressure equivalent to the reaction force, and the first and second cutting blades are pressed evenly against both main surfaces of the whetstone. Pressing means for causing The blade and the second cutting edge is characterized in that it comprises a cutting blade moving means for moving radially relative to the main surface of the grindstone.

As described above, in the grindstone correcting device according to the present invention, the pressing means is attached to one of the first stage and the second stage, and presses the other stage, thereby pressing the first stage. The first stage is moved until the cutting blade of (1) comes into contact with one main surface of the grindstone. Then, when the first cutting blade attached to the first stage comes into contact with one main surface of the grindstone, the pressing means, the second cutting blade, The second stage is moved until it comes into contact with the other main surface of the whetstone. The second cutting blade attached to the second stage abuts on the other main surface of the grindstone, so that the first and second cutting blades face each other in a state where the first and second cutting blades face each other. Are cut while pressing them approximately equally. The first and second cutting blades are moved radially on both main surfaces of the grindstone by the cutting blade moving means while the grindstone rotating means rotates the grindstone, so that the two main surfaces of the grindstone are rotated. Cutting. Thereby, both sides of the grindstone can be accurately and uniformly corrected in a short time.

[0011] Further, a whetstone repairing method according to the present invention for achieving this object is a whetstone repairing method for repairing a whetstone by cutting both principal surfaces of the whetstone while rotating the whetstone, The first stage, which is mounted on the second stage via the first sliding means movable in the thickness direction of the grindstone and mounts the first cutting blade, is pressed in one direction by the pressing means, The first surface on the main surface of the whetstone
A cutting force of the pressing means received from one main surface of the grindstone by the first cutting blade by being further pressed in the same direction by the pressing means. Is attached to the third stage via the second sliding means movable in the thickness direction of the grindstone.
A second stage on which a second cutting blade facing the second cutting blade is mounted, via the first slide means and the second slide means, the first stage and the third stage;
The second cutting blade is brought into contact with the other main surface side of the grindstone facing the first cutting blade at a pressure equivalent to the reaction force by being slid opposite to the stage, Thereafter, the first cutting blade and the second cutting blade are moved in the radial direction with respect to both main surfaces of the grindstone, and the first cutting blade and the second cutting blade are used to move both of the grindstones. The present invention is characterized in that both main surfaces of the grinding wheel are cut while uniformly pressing the main surface.

As described above, in the grinding wheel repair method according to the present invention, both sides of the grinding wheel can be repaired accurately, uniformly, and in a short time.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As an embodiment of the present invention, a grindstone correcting device 1 shown in FIG. 1 is a grindstone dresser for performing dressing or truing on a grindstone 2 used for, for example, grinding or cutting.

The grindstone 2 to be repaired by using the grindstone repairing device 1 has a substantially disk shape with a thickness of, for example, about 200 μm, and both main surfaces 2 a and 2 b are smaller in diameter than the grindstone 2. It has a structure sandwiched between the substantially disk-shaped flanges 3a and 3b.

The grindstone correcting device 1 is provided with a grindstone rotating mechanism for rotating the grindstone 2 by fixing the grindstone 2 to a support shaft and rotating the support shaft by a drive motor. In FIG. 1, the rotation axis O of the grindstone 2 is shown.
Only the illustration is shown, and the illustration of the grinding wheel rotating mechanism is omitted. 2 to 6 shown below, the whetstone 2
Only the rotation axis O of FIG.

The grindstone correcting device 1 simultaneously performs dressing or truing on both surfaces of the grindstone 2 while rotating the grindstone 2 by a grindstone rotating mechanism. A first cutting blade 4 for cutting and a second cutting blade 5 for cutting the other main surface 2b side of the grindstone 2 facing the first cutting blade 4 are provided.

The first cutting blade 4 is fixed to a first mounting jig 6, and is mounted on a first stage 7 via the first mounting jig 6.

The first stage 7 has a first cross roller guide 8 on the lower surface thereof, and is mounted on the second stage 9 via the first cross roller guide 8. In the first stage 7, the first cutting blade 4 indicated by the arrow A in the figure contacts the first main surface 2a of the grindstone 2 on the second stage 9 by the first cross roller guide 8. It is possible to move in the direction of separating.

On the other hand, the second cutting blade 5 is fixed to a second mounting jig 10 and is mounted on the second stage 9 via the second mounting jig 10.

The second stage 9 has a second cross roller guide 11 on the lower surface thereof, and is mounted on the third stage 12 via the second cross roller guide 11. And this second stage 9 is the second stage
Third stage 1 by the cross roller guide 11
The second cutting blade 5 indicated by an arrow B in FIG. 2 is movable in a direction in which the second cutting blade 5 comes into contact with and separates from the other main surface 2 b of the grindstone 2.

On the second stage 9, an air cylinder 13 is mounted.
Of the grinding wheel 2 by the piston 14 of the first stage 7
It is configured to be pressed toward the a side. The air cylinder 13 can arbitrarily adjust the amount of movement of the piston 14 by controlling the amount of air introduced into the air cylinder 13.

The third stage 12 has an elevating mechanism 15 on its lower surface, and the elevating mechanism 15 can move the second stage 9 up and down in the in-plane direction of the grindstone 2 shown by arrow C in the figure. It is possible. That is, the first cutting blade 4 and the second cutting blade 5 can be moved in the radial direction on the main surfaces 2a and 2b of the grindstone 2 by the lifting mechanism 15.

In the grindstone repairing apparatus 1 configured as described above, for example, until the thickness of the grindstone 2 becomes about 150 μm,
Dressing is performed on both main surfaces 2a and 2b of the whetstone 2.

Specifically, when dressing is performed on the grindstone 2 using the grindstone correction device 1, first, FIG.
The grindstone 2 is set in the grindstone correction device 1 as shown in FIG. That is, the grindstone 2 is fixed to a spindle of a grindstone rotating mechanism (not shown).

Next, as shown in FIG. 3, the air cylinder 13 mounted on the second stage 9
4 while pressing the first stage 7 until the first cutting blade 4 attached to the first stage 7 comes into contact with one main surface 2a of the grindstone 2. A is moved to one principal surface 2a side of the grindstone 2 shown in FIG.

Next, as shown in FIG. 4, the first cutting blade 4 attached to the first stage 7
a, the air cylinder 13 moves the second cutting blade 5 attached to the second stage 9 to the other main surface 2b of the grindstone 2 due to the reaction force from the one main surface 2a of the grindstone 2. The second stage 9 is moved to the other main surface 2b side of the grindstone 2 indicated by an arrow B in the figure until the second stage 9 comes into contact with.

That is, the air cylinder 13 attached to the second stage 9 keeps the main surface of the grindstone 2 shown by the arrow A in FIG. 3 until the first cutting blade 4 comes into contact with one main surface 2a of the grindstone 2. After moving the first stage 7 to the side 2a, the second stage
4 until the cutting blade 5 of FIG.
The second stage 9 is moved to the other main surface 2b side of the grindstone 2 indicated by the middle arrow B.

When the second cutting blade 5 attached to the second stage 9 comes into contact with the other main surface 2b of the grindstone 2,
While the first cutting blade 4 and the second cutting blade 5 face each other, the two main surfaces 2a and 2b of the grindstone 2 are cut evenly. That is, the air cylinder 13 is used for the two main surfaces 2 of the grindstone 2.
a and 2b, the first cutting blade 4 and the second cutting blade 5 are pressed uniformly while the first cutting blade 4 and the second cutting blade 5 are pressed against both main surfaces 2a and 2b of the grindstone 2. Cut evenly.

The cutting amount of the first cutting blade 4 and the second cutting blade 5 with respect to both main surfaces 2a and 2b of the grindstone 2 is obtained by changing the pressure by the air cylinder 13.
It can be adjusted arbitrarily.

Next, as shown in FIG. 5, while the grinding wheel rotating mechanism rotates the grinding wheel 2, the third stage 12 is moved by the elevating mechanism 15 in the in-plane direction of the grinding wheel 2 shown by the arrow C in the figure. Then, while the first cutting blade 4 and the second cutting blade 5 move on both main surfaces 2a, 2b of the grindstone 2 in the radial direction, the two main surfaces 2a, 2b of the grindstone 2 are cut.

As a result, in the grinding wheel correcting device 1, the grinding wheel 2
Both sides can be finished.

As described above, in this grindstone correcting device 1,
In a state where the first cutting blade 4 and the second cutting blade 5 face each other with respect to both main surfaces 2a and 2b of the grindstone 2, cutting is performed while uniformly pressing both main surfaces 2a and 2b of the grindstone 2. Go out. Then, while rotating the grindstone 2, the first cutting blade 4
By moving the second cutting blade 5 in the radial direction on the two main surfaces 2a, 2b of the grindstone 2, the two main surfaces 2a, 2b of the grindstone 2 are moved.
Cutting.

Thus, the grindstone correcting device 1 prevents the escape of the grindstone when the cutting blade is pressed against the main surface of the grindstone and the displacement of the grindstone when the direction of the grindstone is changed, as in the prior art. it can. Therefore, even when the thickness of the grindstone 2 is reduced, both surfaces of the grindstone 2 can be finished accurately, uniformly, and in a short time.

By the way, in the above-mentioned grindstone correcting device 1,
The air cylinder 13 is mounted on the second stage 9, and the piston 14 of the air cylinder 13 presses the first stage 7 toward the one main surface 2 a of the grindstone 2. The configuration is not necessarily limited.

For example, an air cylinder 13 is mounted on a first stage 7 like a grinding wheel correcting device 30 shown in FIG. 6, and a piston 14 of the air cylinder 13 connects the second stage 9 to the other main surface of the grinding wheel 2. It may be configured to press toward the 2b side. Note that, in the grindstone repair device 30 shown in FIG. 6, the same parts as those of the grindstone repair device 1 shown in FIG.

In the grindstone correcting device 30, first, the air cylinder 13 mounted on the first stage 7 causes the piston 14 to move the second stage 9 to the other main surface 2 of the grindstone 2.
When pressed to the side b, the first stage 7 is moved by the reaction force from the second stage 9 until the first cutting blade 4 comes into contact with the one main surface 2a of the grindstone 2. Move to the side.

Next, when the first cutting blade 4 attached to the first stage 7 comes into contact with one main surface 2a of the grindstone 2, the reaction force from the one main surface 2a of the grindstone 2 causes this time. The piston 14 of the air cylinder 13 and the second cutting blade 5
The second stage 9 is moved toward the other main surface 2b of the grindstone 2 until the second main surface 2b comes into contact with the other main surface 2b.

Next, when the second cutting blade 5 attached to the second stage 9 comes into contact with the other main surface 2b of the grindstone 2, the first cutting blade 4 and the second cutting blade 5 mutually move. In the opposed state, the two main surfaces 2a and 2b of the grindstone 2 are cut while being pressed uniformly.

Next, while the grindstone rotating mechanism rotates the grindstone 2, the third stage 12 is moved by the elevating mechanism 15 to grind the grindstone 2.
By moving in the in-plane direction, the first cutting blade 4 and the second
The cutting blade 5 cuts the two main surfaces 2a, 2b of the grindstone 2 while moving on the two main surfaces 2a, 2b of the grindstone 2 in the radial direction.

Thus, in the grinding wheel correcting device 30, both surfaces of the grinding wheel 2 can be finished.

Therefore, in this grindstone correcting device 30,
Similarly to the above-described grindstone correction device 1, it is possible to prevent the escape of the grindstone when the cutting blade is pressed against the main surface of the grindstone as in the related art, and the displacement of the grindstone when the direction of the grindstone is changed. Even when the thickness of the grindstone 2 is reduced, both surfaces of the grindstone 2 can be finished accurately, uniformly, and in a short time.

It should be noted that the above-mentioned grindstone correcting devices 1 and 30 are
If it is directly attached to a slicer processing machine or the like that performs grinding, cutting, or the like using the grindstone 2, it is possible to perform dressing or truing on the grindstone 2 in a shorter time.

Further, if the cutting amounts of the first cutting blade 4 and the second cutting blade 5 with respect to the grindstone 2 are adjusted by using NC control or the like of a slicer machine, the grindstone 2 can be adjusted to, for example, V
It is also possible to perform truing processing for forming into a letter shape, a tapered shape, or the like.

In the above description, the grinding wheel 2 is rotated after the first cutting blade 4 and the second cutting blade 5 abut on both the main surfaces 2a and 2b of the grinding wheel 2. The timing for rotating the grinding wheel 2 is not particularly limited. For example, the first cutting blade 4 and the second cutting blade 5 are brought into contact with both main surfaces 2a and 2b of the grinding wheel 2 while rotating the grinding wheel 2, for example. You may make it do.

Further, in the grindstone correcting devices 1 and 30, if the grindstone rotating mechanism can be moved in the in-plane direction of the grindstone 2 instead of providing the above-described elevating mechanism 15, the first cutting blade 4 and the second It is also possible to move the cutting blade 5 in the radial direction with respect to the main surfaces 2a and 2b of the grindstone 2.

As described above, in the whetstone repairing method to which the present invention is applied, the first cutting blade 4 is brought into contact with the one main surface 2a of the whetstone 2 and the whetstone 2 facing the first cutting blade 4 is used. The second cutting blade 5 is brought into contact with the other main surface 2b side, and the first cutting blade 4 and the second cutting blade 5 are moved while uniformly pressing both main surfaces 2a and 2b of the rotating grindstone 2. The two main surfaces 2a and 2b of the grindstone 2 are cut by moving the two main surfaces of the grindstone 2 in the radial direction.

As a result, even when the thickness of the grindstone 2 is reduced, it is possible to finish both surfaces of the grindstone 2 accurately, uniformly, and in a short time.

[0049]

As described above in detail, according to the present invention, even when the thickness of the grindstone is reduced, both sides of the grindstone can be finished accurately, uniformly and in a short time. .

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a configuration of a grindstone correcting device shown as an embodiment of the present invention.

FIG. 2 is a view for explaining the operation of the grinding wheel repair device, and is a schematic front view showing a state in which a grinding wheel is set in the grinding wheel repair device.

FIG. 3 is a view for explaining the operation of the above-mentioned grindstone correcting device, and shows the first cutting blade until the first cutting blade contacts one main surface of the grindstone.
FIG. 5 is a schematic front view showing a state in which the stage has been moved.

FIG. 4 is a view for explaining the operation of the above-mentioned grindstone correcting device, and shows the second cutting blade until the second cutting blade comes into contact with the other main surface of the grindstone.
FIG. 5 is a schematic front view showing a state in which the stage has been moved.

FIG. 5 is a view for explaining the operation of the above-mentioned grindstone correcting device, in which a first cutting blade and a second cutting blade move on both main surfaces of the grindstone in the radial direction to move both main surfaces of the grindstone. FIG. 3 is a schematic front view showing a cutting state.

FIG. 6 is a schematic front view showing another example of the configuration of the grindstone correcting device to which the present invention is applied.

FIG. 7 is a view for explaining a conventional grindstone dresser, showing a state in which one main surface side of a grindstone is cut by a cutting blade.

FIG. 8 is a view for explaining a conventional grindstone dresser, and is a view showing a state in which the other main surface side of the grindstone is cut by a cutting blade.

FIG. 9 is a view for explaining a conventional dressing process, and is a view showing a state in which a grindstone has escaped.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Whetstone correction device, 2 whetstone, 2a One main surface, 2b Other main surface, 4 First cutting blade, 5 Second cutting blade, 7 First
Stage, 8 first cross roller guide, 9 second stage, 11 second cross roller guide, 1
2 3rd stage, 13 air cylinder, 14 piston, 15 lifting mechanism

Claims (9)

(57) [Claims] 1. A grindstone repairing device for repairing a grindstone by cutting both principal surfaces of the grindstone while rotating the grindstone, wherein: a grindstone rotating means for rotating the grindstone; and one principal surface of the grindstone. A first cutting blade for cutting the side, a second cutting blade for cutting the other main surface side of the grindstone facing the first cutting blade, and the first cutting blade is attached to the first cutting blade. A first stage capable of moving in a direction in which the cutting blade comes into contact with and separating from one main surface of the grinding wheel, the first stage and the second cutting blade are attached, and the second cutting blade is mounted on the grinding wheel. A second stage movable in a direction of coming into contact with and separating from the other main surface; and a second stage positioned between the first stage and the second stage.
So that it is attached to one of the stages,
The first stage and the second stage are combined with the thickness of the grinding wheel.
First sliding means that can move in opposite directions only
And a third stage to which the second stage is attached
And between the second stage and the third stage.
So that it is attached to one of the stages,
The second stage is the grinding wheel with respect to the third stage.
A second slide means for allowing movement in the thickness direction of the first stage and one of the first stage and the second stage.
Attached to the stage and push the other stage in one direction
By pressing, the first cutting blade is one of the main components of the grinding wheel.
The first stage until the first stage is in contact with the surface.
While moving it through the guiding means, and
Receiving the reaction force, the first and second sliding means
The second cutting blade is connected to the second stage through the second cutting blade.
Move until it comes into contact with the other main surface of the stone with the same pressure as the above reaction force
And the first and second cutting blades are attached to both main surfaces of the whetstone.
A grindstone comprising: pressing means for uniformly pressing the same; and cutting blade moving means for radially moving the first cutting blade and the second cutting blade with respect to the main surface of the grindstone. Correction device. 2. The grindstone correcting device according to claim 1, wherein said pressing means comprises a cylinder mechanism. 3. The grindstone repair device according to claim 1, wherein said pressing means is attached to said second stage. 4. The whetstone repair device according to claim 1, wherein said pressing means is attached to said first stage. 5. The method according to claim 5, wherein the pressure of said pressing means is controlled.
Cutting of the first and second cutting blades with respect to the grinding wheel
2. The grindstone according to claim 1, wherein the grinding amount is adjusted.
Correction device. 6. The slide means is a cross roller guide.
2. The grinding wheel repair device according to claim 1, wherein
Place. 7. The grindstone correcting device according to claim 1, wherein said cutting blade moving means moves said grindstone rotating means in an in-plane direction of said grindstone. 8. The method according to claim 7, wherein the cutting blade moving means is configured to move the third blade.
The grinding wheel in the in-plane direction of the grinding wheel.
The grinding wheel repair device according to claim 1. 9. A whetstone correcting method for correcting a whetstone by cutting both principal surfaces of a whetstone while rotating the whetstone, wherein the whetstone can be moved on a second stage in a thickness direction of the whetstone. First
Equipped with first cutting blade attached via slide means
The first stage is pressed in one direction by the pressing means
As a result, the first cutting blade is applied to one main surface of the grinding wheel.
And then pressed further in the same direction by the pressing means.
With the above, the first cutting blade receives from one main surface of the whetstone
With the same reaction force as the pressing force of the pressing means, the third stage
Second slide hand that can move in the thickness direction of the whetstone
Attached via a step and opposed to the first cutting blade
The second stage on which the second cutting blade is mounted is mounted on the first stage.
Via the slide means and the second slide means,
Facing the first stage and the third stage
Slides to face the first cutting blade.
At the other principal surface side of the grinding stone, the second
Of the cutting blade abut, then the first cutting edge and the second cutting edge is moved radially with respect to both main surfaces of said grinding wheel, said first cutting edge and the second With the cutting blade,
Off the both main surfaces of the grinding wheel while evenly pressed down the both main surfaces of stone
Grindstone correction method is characterized in that continue to work.