JP4629900B2 - Grinding wheel dressing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dressing method for a grinding wheel that performs sharpening for recovery of the cutting edge of the grinding wheel.
[0002]
[Prior art]
A grinding wheel repeatedly crushes a workpiece several times, resulting in clogging, dropping off of abrasive grains, and the like, resulting in failure to perform its original function.
[0003]
Conventionally, when this situation occurs, dressing (sharpening) of the grinding wheel using dressing tools and tools such as cup grindstones, single stone dressers and stick grindstones is performed, and the cutting edge of the grindstone surface of the grindstone I was trying to recover.
[0004]
[Problems to be solved by the invention]
However, in this conventional method, since the workpiece was removed and the dedicated jig was brought into contact with the grinding wheel moderately and the grinding wheel was dressed, it took a long time to perform the dressing work, which was a work burden. .
[0005]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a dressing method for a grinding wheel that can be easily dressed without requiring a dedicated jig or tool.
[0007]
[Means for Solving the Problems]
According to the dressing method of the grinding wheel of the present invention , a gap is provided between the processing surface of the grinding wheel and the work surface of the workpiece, and abrasive grains are applied to the gap, and the workpiece is covered by the grinding wheel. The grinding wheel is sharpened by rubbing the processed surface.
[0009]
Furthermore, the dressing method for a grinding wheel of the present invention is characterized in that the grinding abrasive grains are diamond paste.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
[Example 1]
1 and 2 are diagrams for explaining a dressing method for a grinding wheel according to Embodiment 1 of the present invention.
[0011]
In these drawings, W1 is, for example, a cemented carbide workpiece, and here includes a disk part W2 and a columnar part W3 formed integrally on the same axis on one surface of the disk part W2. The end surface of the cylindrical portion W3 becomes the workpiece surface W4. The workpiece surface W4 is a concave concave surface, and the workpiece W1 is rotationally driven as indicated by an arrow A during the machining. The rotation speed of the workpiece W1 is, for example, 500 rpm.
[0012]
Reference numeral 1 is a grinding wheel of resin bond grain size # 3000, for example, and this grinding wheel 1 is a disc-shaped one, and its central portion is fixed to one end of the rotating shaft 2. As shown, it rotates integrally with the rotary shaft 2. The rotational speed of the grinding wheel 1 is, for example, 36000 rpm.
[0013]
As shown in FIG. 1, the grinding wheel 1 is approached as indicated by an arrow C toward the work surface W4 in a rotated state. At that time, as shown in FIG. 2, a slight gap φ is provided between the processing surface 1a of the grinding wheel 1 and the processing surface W4. The size of the gap φ is, for example, 1 μm to several μm. Here, diamond paste (grinding abrasive grains) 3 is applied to the workpiece surface W4 side of the workpiece W1 so as to fill the gap φ. The diamond particle diameter of the diamond paste 3 is 1 μm, for example. The processing surface W1 of the workpiece W1 is rubbed with the diamond paste 3 by the grinding wheel 1, and the grinding wheel 1 is also rubbed by the diamond paste 3 to dress the processing surface 1a.
[0014]
As described above, when machining the workpiece surface W4 of the workpiece W1, a gap φ is provided between the workpiece surface W4 of the workpiece W1 and the machining surface 1a of the grinding wheel 1, and a predetermined value is set so as to fill the gap φ. A diamond paste 3 having a particle size is applied, and the diamond paste 3 is used to perform dressing (sharpening) of the processed surface 1a of the grinding wheel 1 simultaneously with grinding of the processed surface W4 of the workpiece W1. Work such as jig setup and contact condition adjustment is not required, and dressing of the grinding wheel is simplified.
[Example 2]
3 and 4 are diagrams for explaining a dressing method for a grinding wheel according to Embodiment 2 of the present invention.
[0015]
In these drawings, W5 is, for example, a carbide workpiece, and has a cylindrical part W6 and a hemispherical convex part W7 whose central axis coincides with the cylindrical part 6, and an end face of the convex part W7. Becomes the work surface W8. The workpiece W2 is rotated as indicated by an arrow D during the machining. The rotation speed of the workpiece W5 is, for example, 500 rpm.
[0016]
4 is a grinding wheel of resin bond particle size # 3000, for example, which is ring-shaped and fixed to one surface of a disk-shaped support member 5. A rotating shaft 6 is fixed to the center of the opposite surface of the support member 5, and the grinding wheel 4 is rotated as indicated by an arrow E during the machining operation.
[0017]
As shown in FIG. 3, the grinding wheel 4 is approached toward the workpiece surface W8 of the workpiece W5 while being rotated. At that time, as shown in FIG. 4, a slight gap φ is provided between the processing surface 4a of the grinding wheel 4 and the processing surface W8. The size of the gap phi is, for example, 1 μm to several μm. It is. Here, diamond paste (grinding abrasive grains) 7 is applied to the processed surface 4a of the grinding wheel 4 so as to fill the gap φ. The diamond paste 7 has a diamond particle size of, for example, 1 μm. The work surface W8 of the work W5 is rubbed with the diamond paste 7 by the grinding wheel 4, and the dressing of the work surface 4a of the grinding wheel 4 is performed by the individual diamond paste 7.
[0018]
In this way, when machining the workpiece surface W8 of the workpiece W5, a gap φ is provided between the workpiece surface W8 of the workpiece W5 and the machining surface 4a of the grinding wheel 4, and a predetermined value is set so as to fill the gap φ. Since the diamond paste 7 having a particle size is applied and the diamond paste 7 is used to perform the dressing (sharpening) of the processed surface 4a of the grinding wheel 4 simultaneously with the grinding of the processed surface W8 of the workpiece W5. Work such as jig setup and contact condition adjustment is not required, and dressing of the grinding wheel is simplified.
[0019]
In the embodiment described above, the diamond paste is applied to either the work surface of the work piece or the work surface of the grinding wheel, but both the work surface of the work piece and the work surface of the grinding wheel are applied. A diamond paste may be applied.
[0020]
【The invention's effect】
According to the present invention, dressing can be easily performed without requiring a dedicated jig or tool.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a relationship between a workpiece and a grinding wheel in a dressing method for a grinding wheel according to a first embodiment of the present invention in a state before processing.
FIG. 2 is an enlarged cross-sectional view of a main part illustrating a relationship between a workpiece and the grinding wheel in the grinding wheel dressing method according to the first embodiment of the present invention in a state during processing.
FIG. 3 is a side view showing a relationship between a workpiece and a grinding wheel in a grinding wheel dressing method according to Embodiment 2 of the present invention in a state during processing.
4 is an enlarged cross-sectional view of a main part of FIG. 3;
[Explanation of symbols]
W1, W5 ... Workpiece
W4, W8 ... Work surface 1, 4 ... Grinding wheel 3, 7 ... Diamond paste

Claims (2)

In the grinding wheel dressing method for sharpening the grinding wheel,
Providing a gap between the processing surface of the grinding wheel and the processing surface of the workpiece;
A method for dressing a grinding wheel, comprising applying abrasive grains to the gap and rubbing the work surface of the workpiece with the grinding wheel to sharpen the grinding wheel. In the dressing method of the grinding stone according to claim 1 ,
A method for dressing a grinding wheel, characterized in that the abrasive grains are diamond paste.

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