JPS6327967Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a shaping device for dressing a grindstone (adjusting the shape of a tool).

<Prior Art> It is difficult to manufacture a paper-thin whetstone due to problems with the abrasive grains, binders, and processing methods.

Furthermore, if there is even a slight distortion in a thin whetstone, the centrifugal force will not work evenly when it is rotated at high speed, resulting in lateral wobbling and making it difficult to cut thin grooves.

In addition, the grindstone is easily damaged due to horizontal vibration.

In addition, as a conventional grindstone shaping technology,
A shaping device as shown in Publication No. 47 is known.

In this device, a first elbow is pivotally connected to the end of a fixed arm, a second elbow is pivotally connected to the free end of the first elbow, and a dressing tool is pivotally connected to the free end of the second elbow. The dressing tool is configured so that an arcuate motion can be applied to the dressing tool by rotating the bearing provided at the connecting portion of each elbow.

However, this shaping device has the disadvantage that it not only has a large number of component parts but also that shaping operations are difficult.

<Purpose of the present invention> The present invention has been made to improve the above-mentioned points, and its purpose is to provide the following grindstone shaping device.

<A> A device that can quickly and efficiently shape not only thick whetstones but also thin ones <B> A device that can shape whetstones without distortion <Configuration of the present invention> Next, the grindstone of the present invention can be shaped. An example of a mold device will be described.

<A> Mount The mount 1 is a stand that can be fixed to the base of the aircraft using magnets or screws.

The frame 1 is attached to a gear box 2 via a horizontal shaft.
is rotatably mounted.

However, instead of allowing free rotation, the gearbox 2 is configured to be restrained at a predetermined angle by tightening the restraint disks 11 on the side surfaces.

<B> Gearbox 2 is a gearbox in which, for example, one set of bevel gears is housed.

A handle 3 for input is attached to one of the set of bevel gears, and a rotating shaft 4 for output is attached to the other gear.

Therefore, by manually rotating the handle 3, the rotating shaft 4 rotates at a rotational speed that is increased in accordance with the gear ratio.

The rotating shaft 4 is a rod-shaped body with carbide abrasive grains such as diamond embedded in the dressing surface 41 at its tip,
Do the dressing work with this tip.

This tip is replaceable.

<C> How to use First, the mount 1 is fixed to the base of the grinding machine.

Next, by adjusting the restraint disk 11, the inclination angle of the gearbox 2 is adjusted.

In the case of this device, it is convenient to set the angle in a small number of steps, such as 20°, 25°, and 45°, by inserting a pin or the like.

Dressing is done in the following order:

(1) Dressing of the back side of the grindstone (Fig. 1) The grindstone 5 does not necessarily maintain a vertical surface.

For this purpose, the pedestal 1 is first fixed on the back side of the grindstone 5, the gearbox 2 is set at, for example, 25 degrees, and the grindstone 5 is gradually lowered while rotating.

When the dressing surface 41 at the tip of the rotating shaft 4 and the grinding wheel 5 come into contact, the grinding wheel 5 is attached to the rotating shaft 4 using the handle 3.
gives a rotation in the opposite direction to the rotation of .

As a result, the relative speed between the two becomes high, making it possible to dress with extremely high efficiency.

(2) Pre-dressing of the surface Next, set the pedestal 1 on the surface side of the grindstone 5, and set the gear box 2 at, for example, 20 degrees.

Then, the grinding wheel 5 is gradually lowered while rotating the dressing surface 41 of the rotary shaft 4 in the same manner as the dressing on the back side.

As a result, the green portion on the surface of the grindstone 5 is ground down at a gentle angle, forming a somewhat thin flange.

(3) Post-dressing of the surface Next, the position of the pedestal 1 is shifted, and the grindstone 5 is lowered with the gearbox 2 tilted at 45 degrees.

In this case, the gantry 1 can be moved as is by the workpiece feeding machine.

As a result, the grindstone 5 is dressed from the side, and a thinner plate can be formed.

<Effects of the present invention> Since the present invention was configured as described above, the following effects were confirmed.

<B> Good dressing can be performed using a device with an extremely simple structure.

<B> Since rotation was also applied to the dressing side, dressing could be performed several times faster than the conventional dressing that was performed by rotating only the grindstone.

<C> Since the back side is first dressed and finished, and then the front side is dressed, even a disc-shaped grindstone that is slightly distorted can be molded into a thin grindstone with accurate flatness.

[Brief explanation of the drawing]

Figure 1: Perspective view of the device of the present invention, Figures 2-3:
Explanatory diagram of dressing method 1: Frame, 2: Gearbox, 4: Rotating shaft,
5: Whetstone.

Claims (1)

[Scope of Claim for Utility Model Registration] A mount fixed to a grinding wheel device, a gearbox that is pivotally supported with respect to the mount so that its inclination angle can be adjusted, a handle that rotates the gear in the gearbox, and a mount that rotates the amplified rotation from the gearbox. A grindstone shaping device consisting of a rotating shaft that outputs motion and abrasive grains attached to the tip of the rotating shaft.