JPS601953Y2 - check block - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a chuck block that is used in conjunction with a magnetic chuck as a suction aid for a workpiece.

Conventionally, this type of chuck block is constructed by laminating a flat magnetic material 1 and a non-magnetic material 2 as shown in FIG.
When using it, this block is placed on each of the magnetic pole parts 6 and 7 of the magnetic chuck so that it is parallel to these magnetic pole parts, and the workpiece is processed by using the magnetic attraction force that appears on the top and side end faces of the block. It was used to attract and hold objects.

Therefore, the attractive force that appears on the side end surface of the chuck block is between the magnetic materials laminated via the non-magnetic material, that is, between a shown in the figure, and between the side end surface and the magnetic pole part of the magnetic chuck, that is, between a shown in the figure. It almost never appeared between b.

Therefore, when using a conventional chuck block to grind a workpiece using the side end face of the block, the workpiece may not be held securely due to insufficient suction power, resulting in accuracy in the machining of the workpiece. This caused a decline in work efficiency.

The present invention is intended to provide a chuck block that can eliminate such disadvantages.

The chuck block of the present invention will be explained below according to the attached drawings. Fig. 2 is a partially cutaway plan view showing the chuck block of the present invention and its usage condition, and Fig. 3 is a partially cutaway plan view showing the use condition of the chuck block of the present invention. It is a perspective view, and 3
is a magnetic material, and 4 is a non-magnetic material.

The magnetic body 3 includes a magnetic leg portion 31 having a linear shape in a plane that abuts on one magnetic pole portion, for example, 6 of the magnetic chuck 5, and a magnetic leg portion 31 that is integrally formed with the magnetic leg portion 31 and the above-described magnet. The magnetic end portion 33 has a bent shape in a plane formed so that the side end surface 32 is disposed on the other magnetic pole portion 7 of the chuck 5.

Thus, the magnetic material 3 is laminated and fixed with the non-magnetic material 4 interposed therebetween.

A flat non-magnetic material 8 is disposed on the lower surface of the magnetic end portion 33 facing the magnetic chuck to prevent short circuits.

As shown in FIGS. 2 and 3, the chuck block of this embodiment has a magnetic leg portion 31 having a linear shape in a plane on parallel magnetic pole portions 6 and 7 formed on a magnetic chuck 5. They are used by placing them parallel to each other and corresponding to each other.

Therefore, since the block of the present invention is placed on the magnetic chuck in this manner, the magnetic flux magnetically induced from the magnetic pole portion of the magnetic chuck 5 through the magnetic leg portions 31 is transmitted to the upper surface and side end surface 32 of the chuck block of the present invention. It not only forms a magnetic field similar to that of the chuck block, but also forms an effective magnetic field between b shown in the figure.

Therefore, as shown in FIG.
The workpiece 9 arranged along the above-mentioned side end surface 3 is particularly
This makes it possible to effectively utilize the attractive force generated between the vicinity of the lower end of the magnetic chuck 2 and the magnetic pole portion of the magnetic chuck 5, that is, between b' in the figure.

In the above, in this embodiment, the width of the magnetic leg portion 31 is set to the magnetic pole portions 6 and 7 of the magnetic chuck 5 as shown in the figure.
Although the width is the same as that of the magnetic pole parts 6 and 7, the width may be selected to be wider or narrower than the width of the magnetic pole parts 6 and 7.

Furthermore, not only can the pitch of the non-magnetic material 4 interposed in the magnetic material 3 be freely selected, but also the thickness of the non-magnetic material 8 formed on the lower surface of the magnetic end portion 33 can be appropriately formed. It's a good thing.

Furthermore, in this embodiment, the non-magnetic material 8 is formed so as to cover the entire lower surface of the magnetic end portion 33 which has a bent shape in a plane, but is not necessarily limited to this.
As shown by the chain line in FIG. 5, the non-magnetic material 8 is
3 may be formed only at a portion 34 facing the magnetic pole portion of the magnetic chuck where the side end surface 32 of the magnetic end portion 33 is arranged.

In this case, there is an advantage that the area of the magnetic leg portion 31 facing the chuck is increased, and therefore the magnetic flux density is increased, and the attractive force of the chuck block of the present invention is improved.

Thus, the chuck block of the present invention may be formed as shown in FIGS. 6 to 9, respectively.

Of these, in FIG. 6, the magnetic end portion 33 is formed so as to be symmetrical in a plane with respect to the axis 1, and the magnetic end portion 33 in FIG.
In the figure, the side end surfaces 32 of the magnetic end portions 33 are formed so that they can be placed on other magnetic pole portions adjacent to the magnetic pole portion of the magnetic chuck that the magnetic leg portion 31 contacts.

Furthermore, FIG. 8 shows that in each of the above embodiments, the magnetic end portion 33 is formed to have a bent shape in a plane with respect to the magnetic leg portion 31;
1, and the side end surfaces 32 are arranged in the same manner as in the embodiment shown in FIG. 7.

In the case of each of the above embodiments, there is an advantage in that a suction force is generated between the above-mentioned points b on both end faces, and in the case of the embodiment shown in FIG. There is also the advantage of being

Furthermore, in the embodiment shown in FIG. 9, the shape of each magnetic body 3 and non-magnetic body 4 in a plane is formed in the same manner as in the embodiment shown in FIG. 33 side end surface 3
2 is formed so that it is not disposed on an adjacent magnetic pole section different from the magnetic pole section of the magnetic chuck that the double-sided co-magnetic leg section 31 comes into contact with, but is disposed on only one of them. .

In any of the above embodiments, the non-magnetic material 8 for preventing short circuits is formed in the same manner as in the embodiments shown in FIGS. 2 to 5.

That is, in the embodiments shown in FIGS. 6 and 7, the entire lower surface of the magnetic end portion 33, which has a bent shape in a plane, is covered with a non-magnetic material, and its upper and lower positions extend in the longitudinal direction in the respective drawings. or is formed only in the range indicated by the chain line.

In the embodiments shown in FIGS. 8 and 9, they are formed at the locations indicated by chain lines.

Incidentally, in the above, the shape of the magnetic end portion 33 in a plane is not necessarily limited to each of the above-mentioned shapes, for example, it may be formed to have a curved shape in a plane, or the shape of the outer surface of the chuck block of the present invention may be However, the planar shape is not limited to that shown in the accompanying drawings.

That is, the outer surface shape may be formed into, for example, a V-shape, a mountain shape, or other appropriate curved surface shape, or may be formed into an abbreviated shape in a plane.

Since the chuck block of the present invention has such a configuration, the following effects can be obtained by using this chuck block.

That is, in the chuck block of the present invention, as described above, an attractive force is generated between the side end face of the block and the magnetic pole part of the magnetic chuck, so the side end face of the proposed block is used to grind the workpiece, especially a thin plate-like workpiece. In this case, the workpiece can be reliably attracted and held, and therefore the processing accuracy and work efficiency of the workpiece can be significantly improved.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a conventional chuck block and its usage state, Fig. 2 is a partially cutaway plan view of the proposed chuck block and its usage state, and Fig. 3 is a partially cutaway view of the same block as above. A partially cutaway perspective view showing the state of use;
FIG. 4 is a side view with a part cut away when a workpiece is placed on the same block as above, FIG. 6 to 9 are plan views showing other embodiments of the improvement block. In the figure, 3 is a magnetic body, 31 is a magnetic leg part, 32 is a side end surface, 33
is a magnetic end, 4 is a non-magnetic material, 5 is a magnetic chuck, 6
Reference numeral 7 indicates one magnetic pole portion of the magnetic chuck, 7 indicates the other magnetic pole portion of the magnetic chuck, and 8 indicates a nonmagnetic material formed on the lower surface of the magnetic end portion.

Claims (1)

[Scope of utility model registration request] A magnetic leg that abuts on one magnetic pole of the magnetic chuck, and a magnetic end that is integrally formed with the magnetic leg and whose side end surface is disposed on the other magnetic pole of the magnetic chuck. 1. A chuck block comprising: a magnetic material having a portion laminated and fixed via a non-magnetic material, and a non-magnetic material disposed on a lower surface of the magnetic end portion facing the magnetic chuck.