JPH0526259U - Disk-shaped grinding wheel - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to see through the ground portion of the workpiece during the grinding operation, and to improve the grinding efficiency by the notch edge of the ground portion. [Structure] A notch having an appropriate size is provided in a required portion of a grinding portion of a disk-shaped grinding wheel.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a disc-shaped grinding wheel.

[0002]

[Prior Art]

 Conventionally, for example, in an offset grindstone for a portable grinder, as shown in FIG. 4, a grinding portion of a work piece is hidden during the grinding operation by the grinding portion of the grindstone and cannot be visually recognized at all. In FIG. 4, 1 is an offset grindstone, 1a is a ground portion, and 2 is a workpiece.

For this reason, it is not possible to accurately recognize whether or not the necessary grinding portion is being ground, the grinding state, etc., and the parts other than the necessary part are ground. Or, it was often ground more than necessary.

Further, in order to confirm the grinding state, the grindstone must be displaced from the grinding portion of the work piece one by one, which is one of the reasons why the work cannot be performed quickly. .

[0005]

[Problems to be solved by the device]

 The present invention has been made in view of the above points, and by applying the principle of the tunnel effect and providing a notch in the grinding portion, it is possible to see through the grinding portion of the workpiece during the grinding operation. It is intended to provide the disc-shaped grinding wheel as described above.

[0006]

[Means for Solving the Problems]

 However, the gist of the present invention resides in a disk-shaped grinding wheel characterized in that a notch of an appropriate size is provided at a required position of a grinding portion.

[0007]

[Action]

 Next, the operation of the present invention having the above structure will be described. When the grinder is driven and the grinding work is performed, the grindstone rotates at high speed. Then, at this time, due to the action of the notch provided in the grinding portion of the grindstone, the grinding processing portion of the workpiece can be seen through. In addition, it is due to the principle of the tunnel effect that the grinding portion of the workpiece hidden underneath can be seen through while the grindstone rotates at high speed.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a disk-shaped grinding wheel according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is an explanatory view of operation.

In the figure, 3 is a disk-shaped grinding wheel, and in this embodiment, an offset grinding wheel for a portable grinder is shown. Further, the disk-shaped grinding wheel 3 is provided with four V-shaped notches 4 at its grinding portion 3a. In the present embodiment, the notches 4 are provided at four locations along the outer circumference of the cut portion 3a at equal intervals, but the locations where the notches are provided need not be limited to the outer circumference of the cut portion, and any number of locations may be provided. It is not limited to the examples. Moreover, the size and shape of the notch are not limited to those in the embodiment. In addition, reference numeral 5 in the other drawings indicates a workpiece.

However, when the disk-shaped grinding wheel 3 rotates at a high speed, the notch 4 provided in the grinding portion 3a makes it possible to see through the grinding portion of the workpiece 5 as shown in FIG. Further, since the edge P is sharp at the portion of the notch 4, the polishing efficiency can be further improved.

[0011]

[Effect of the Invention] Since the present invention has the above-described structure and operation, it is possible to see through the ground portion of the workpiece by the tunnel effect of the notch provided in the ground portion during the grinding operation. Is. Therefore, it is possible to accurately grind only the necessary portion and also to the necessary state, which is particularly suitable when it is necessary to perform precise grinding. Further, unlike the conventional case, since it is not necessary to shift the grindstone from the ground portion of the workpiece for checking during the grinding operation, the work can be carried out smoothly and quickly. In addition, since the notch has a sharp edge, the cutting efficiency can be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a disk-shaped grinding wheel according to the present invention.

FIG. 2 is a plan view of a disc-shaped grinding wheel according to the present invention.

FIG. 3 is an operation explanatory view of the disc-shaped grinding wheel according to the present invention.

FIG. 4 is an explanatory view of a conventional disc-shaped grinding wheel.

[Explanation of symbols]

 3 Disc-shaped grinding wheel 3a Grinding part 4 Notch

Claims (1)

[Scope of utility model registration request] 1. A disk-shaped grinding wheel, wherein a notch having an appropriate size is provided in a required portion of a grinding portion.