JP2539530Y2 - Wheel repair device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a correction device for correcting a grinding wheel in a grinding machine.

[0002]

2. Description of the Related Art Conventionally, when a work is ground by an outer peripheral surface and a side surface of a grindstone inclined with a grinding machine, the flatness of the grindstone deteriorates. Therefore, the work is ground while correcting the outer peripheral surface and the side surface of the grindstone with a dresser. doing. This dresser is shown in FIG. The side surface of the grindstone 20 is corrected by one dresser 21 serving as a single point, and the outer peripheral surface of the grindstone 20 is corrected by a dresser 22 serving as a single point.

[0003]

However, as shown in FIG. 4, when the outer peripheral surface of the grindstone 20 is modified by the other dresser 22, the grindstone is arranged below the center line L of the grindstone 20. If the outer peripheral surface of the grinding wheel 20 is not corrected, the right angle between the side surface of the grindstone 20 and the outer peripheral surface cannot be maintained. Therefore, there is a problem that the workpiece cannot be processed with high accuracy. When the outer peripheral surface of the grindstone 20 is corrected, the dresser 22 which is a single point is in point contact with the dresser 22, so that the center line L of the grindstone 20 is fixed.
It is very difficult and time-consuming to accurately position the dresser 22 at the lower part of the car.

Further, in a dresser as shown in FIG. 3,
The outer peripheral surface and the side surface of the grindstone are corrected by two different dressers, and it takes a lot of time to perform positioning on each of the two dressers.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a grindstone correcting device for a grinder in which a grindstone can be easily corrected with one dresser.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a disk-shaped grinding wheel having a first grinding surface and a second grinding surface which are close to each other from both upper and lower surfaces of the grinding wheel. In a grinding machine formed in a convex shape and capable of rotating and driving the grindstone with the center axis of the disc-shaped grindstone as a rotation axis, the plane for correcting the first ground surface and the second ground surface are corrected. A dresser configured with a peripheral surface and configured such that an angle between the plane and the peripheral surface is equal to an angle between the first ground surface and the second ground surface; and the dresser, In a state where the posture of the grindstone is kept constant, between a first operation position where the first grinding surface contacts the plane and a second operation position where the second grinding surface contacts the peripheral surface. And a driving means for relatively moving the dresser and the grindstone. To.

[0007]

Therefore, when modifying the first ground surface and the second ground surface formed on the peripheral surface of the grinding wheel, the first ground surface is modified on the plane of the dresser, and the second ground surface is modified on the peripheral surface. Fix it. The angle between the plane of the dresser and the peripheral surface is formed to be the same as the angle between the first ground surface and the second ground surface. The driving means moves the dresser and the grindstone between a first operating position where the plane of the dresser contacts the first grinding surface and a second operating position where the second grinding surface contacts the peripheral surface. The dresser and the grindstone are relatively moved while keeping the posture constant. When the portion corresponding to the plane of the dresser of the first grinding surface is made parallel to the plane, the relative movement of the dresser and the grindstone is relatively moved in the radial direction of the plane of the dresser and in the height direction of the dresser. It will be an easy move.

[0008]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG. As shown in FIG. 1, a work table 3 that reciprocates in a horizontal direction (left-right direction in FIG. 1) is provided on an upper portion of a main body 2 of the grinding machine 1. A work 4 is fixed to the work table 3. or,
A column 5 is provided at the back of the main body 2 in the grinding machine 1. A column head 6 is provided on the front side of the column 5 so as to be vertically movable.

A drive motor 7 is fixed to the tip of the column head 6 in a state where the drive motor 7 is inclined (in the present embodiment, at an angle of 45 ° to the left) by a fixture (not shown). The output shaft 8 of the drive motor 7 is connected to a grindstone shaft 9, and a grindstone 10 is fixed to the grindstone shaft 9 via a mounting bracket (not shown).

A support member 11 is provided upright on the upper front left side of the work table 3, and a slide member 12 is provided on a right side surface of the support member 11. The sliding member 12 is vertically slid by a feed screw (not shown) provided in the support member 11. A dress motor 13 is provided at the tip of the sliding member 12, and a rotating shaft 14 of the dress motor 13 projects upward.
A cylindrical dresser 15 is rotatably provided at the tip of the rotating shaft 14. The dresser 15 corrects an outer peripheral surface 10a as a first ground surface and a side surface 10b as a second ground surface of the grinding wheel 10.

Therefore, in this embodiment, the worktable 3, the column head 6, and the sliding member 12 make the grindstone 10
And a driving means for moving the dresser 15. Next, the operation of the grinding wheel correcting device in the grinding machine 1 configured as described above will be described.

First, the drive motor 7 is driven to drive the grinding wheel shaft 9
And the grindstone 10 is rotated. And work table 3
Is reciprocated in the horizontal direction and the column head 6 is reciprocated in the vertical direction, whereby the work 4 attached and fixed to the work table 3 is ground. That is, by moving the grindstone 10 in the horizontal direction, the upper surface of the work 4 is ground by the outer peripheral surface 10a of the grindstone 10, and by moving the grindstone 10 in the vertical direction, the side surface of the work 4 is formed by the side surface 10b of the grindstone 10. Grinding.

The outer peripheral surface 10a and the side surface 10a of the grindstone 10
If b becomes poor in flatness due to the grinding of the work 4, it is necessary to correct the outer peripheral surface 10 a and the side surface 10 b of the grindstone 10. Therefore, the dressing motor 13 is driven to
After rotating the grindstone 4 and the grindstone 15, the column head 6 is moved downward to correct the outer peripheral surface of the grindstone 10, and the grindstone 1 is rotated.
A cut is made in the outer peripheral surface 10 a of the dresser 15.

Thereafter, as shown in FIG. 2, the work table 3 is reciprocated in the horizontal direction to bring the upper surface of the dresser 15 into sliding contact with the outer peripheral surface 10a of the grindstone 10. Thereby, the outer peripheral surface 10a of the grindstone 10 is corrected. When the correction of the outer peripheral surface 10a of the grindstone 10 is completed, the work table 3 is moved to position the grindstone 10 on the right side of the dresser 15.
Further, the work table 3 is moved so that the side surface 10b of the grindstone 10 is cut into the dresser 15. And
The side surface 10b of the grindstone 10 is corrected by moving the column head 6 in the vertical direction. Therefore, the outer peripheral surface 10a and the side surface 10b of the grindstone 10 can be corrected with one dresser. At the time of the correction, the work table 3 only moves in the horizontal direction, and the column head 6 only needs to move in the vertical direction, and the work table 3 and the column head 6 can easily move.

When the outer peripheral surface 10a of the grindstone 10 is corrected, the work table 3 and the column head 6 may be moved to a position where the upper surface of the dresser 15 and the outer peripheral surface 10a of the grindstone 10 are in sliding contact. That is, since the dresser 15 is formed in a cylindrical shape, the upper surface of the dresser 15 has an area. As a result, the dresser 1 differs from the conventional one.
When the outer peripheral surface 10a of the grindstone 10 is brought into sliding contact with the upper surface of 5,
The outer peripheral surface 10 a passing through the center of the grindstone 10 always comes into sliding contact with the upper surface of the dresser 15 first. As a result, it is not necessary to dispose the dresser 15 below the center line of the grindstone 10, so that
The repair work of the outer peripheral surface 10a of the grindstone 10 can be performed easily in a short time.

Further, since the dresser 15 is rotated even if the upper surface of the dresser 15 has some irregularities, the upper surface of the dresser 15 becomes flat by this rotation, and the outer peripheral surface 10a of the grindstone 10 can be corrected.

The outer peripheral surface 10a and the side surface 10a of the grindstone 10
The processing procedure for correcting b may be performed by a procedure other than the above. The movement of the work table 3 causes the dresser 1 to move.
Although 5 is arranged below the grindstone 10, it is also possible to move the column 6 so as to move it. When the side surface 10a of the grindstone 10 is corrected, the dresser 15 can be moved in the vertical direction by moving the sliding member 12 in the vertical direction.

In this embodiment, the grindstone 10 is
Although embodied in a grinder fixed at 5 °, it is also possible to use a grinder capable of freely adjusting the inclination of the grindstone 10.

[0019]

According to the present invention, as described in detail above, the life of the dresser can be extended since two dressers are used. In addition, after correcting one grinding surface of the grinding wheel, when correcting the other grinding surface, since the dresser and the attitude of the grinding wheel are relatively maintained in a fixed state,
An error associated with the movement of the dresser and the grindstone when changing the ground surface to be corrected can be reduced, and the correction accuracy can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing that a dresser is provided at an end of a work table in a grinding machine, and the outer peripheral surface of a grindstone is corrected by the dresser.

FIG. 2 is a partially enlarged plan view showing that an outer peripheral surface of a grindstone is corrected on an upper surface of a dresser.

FIG. 3 is an explanatory view showing a conventional example in which an outer peripheral surface and a side surface of a grindstone are corrected by a single-point dresser.

FIG. 4 is an explanatory view showing a conventional example in which a single-point dresser is positioned below a center line of a grindstone to modify an outer peripheral surface of the grindstone.

[Explanation of symbols]

4 Work, 10 Grindstone, 10a Outer peripheral surface as first ground surface, 10b Side surface as second ground surface, 15
Dresser.

Claims (1)

(57) [Scope of request for utility model registration] 2. The method according to claim 1, wherein the peripheral surface of the disc-shaped grindstone is placed on both upper and lower surfaces of the grindstone.
From the first grinding surface and the second grinding surface
Formed in a convex shape, the center axis of the disc-shaped grindstone is the rotation axis
In a grinding machine capable of rotationally driving a grindstone, a plane for correcting the first grinding surface and the second grinding surface are
And a peripheral surface to be corrected.
The angle between the first ground surface and the second ground surface is
With a dresser configured to be the same as the angle to be made, and with the posture of the dresser and the grindstone held constant,
A first working position where a first grinding surface abuts said plane;
A second working position at which a second grinding surface abuts the peripheral surface;
Drive means for relatively moving the dresser and the grindstone between
A grinding wheel correcting device in a grinding machine comprising: