JPH052293Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a diamond grinding wheel for a bench grinder that has a structure in which all dust is sucked into the grinding wheel and discharged from an outlet.

[Conventional technology]

Conventional grindstones for bench grinders grind by simply pressing the material to be ground against the circumferential surface of a rotating body rotated by a rotating shaft, which causes dust to scatter and harm the health of workers.

[Purpose of invention]

The purpose of this invention is to absorb all the dust generated during grinding and eliminate the harmful effects caused by scattering.

[Structure of the idea]

Therefore, the present invention is constructed as follows.

That is, the present invention is composed of a grinding wheel member made of a metal plate with a large number of small holes and diamond or CBN fine particles electrodeposited on the surface excluding the small holes, and a hollow rotating body equipped with a rotating shaft hole. The grindstone member is a diamond grindstone for a bench grinder, which is attached to the open surface of a hollow rotary body, and has exhaust guide vanes protruding from the other surface of the hollow rotary body to provide a gap for discharging dust and air.

〔Example〕

In the first embodiment shown in FIGS. 1 to 3, 1 is a hollow rotating body with a rotating shaft insertion hole 2 in the center.
A large number of small holes 3 are made in the open periphery, and a grinding member 5 made of a metal plate on which fine diamond particles 4 are electrodeposited is placed over the surface except for the small holes 3 and removably fixed.

A rotating exhaust guide vane 7 having a dust and air exhaust gap 6 is provided on one side of the hollow rotating body 1.

In the embodiments shown in FIGS. 4 and 5, the orientation of the grindstone member with respect to the rotating shaft changes, and therefore the shape of the grindstone member changes somewhat, but the function is completely the same.

[Operation of the idea]

As the hollow rotating body rotates, the exhaust guide vanes also work together, so the object to be ground is ground on the surface of the grinding wheel member, and at the same time, the grinding layer is connected to the external air flow and the inside of the blade inside the grinding wheel, similar to the principle of an aircraft. An air flow is created and the air inside the grindstone is discharged to the outside through the discharge gap, and a bag or the like is provided here to collect dust.

[Effect of idea]

According to the present invention, dust and grinding debris generated during grinding can be disposed of without scattering, and the work can be performed hygienically. In particular, the device of the present invention has the advantage of being able to collect dust without requiring a separate dust suction device.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a grindstone for a bench grinder according to the present invention, Fig. 2 is a longitudinal cross-sectional view, Fig. 3 is a view showing a dust discharge state, and Figs. 4 and 5 show other embodiments. FIG. 1...Hollow rotating body, 2...Rotating shaft insertion hole, 3...
...small hole, 4...diamond fine particles, 5...grindstone member, 6...exhaust gap, 7...exhaust guide vane.

Claims (1)

[Scope of utility model registration request] A large number of small holes are drilled and diamond or
It consists of a grinding wheel member made of a metal plate with CBN fine particles electrodeposited on its surface except for small holes, and a hollow rotating body with a rotating shaft hole.The grinding wheel member is attached to the open surface of the hollow rotating body, and A diamond whetstone for bench grinders that has raised exhaust guide vanes on the other side that have dust and air exhaust gaps.