JPS63120080A - Grinding wheel dressing device - Google Patents

Abstract

PURPOSE:To make it possible to dress a grinding wheel allowing a plurality of diamonds to keep definite dressing ability and giving them a definite period of life by indexably providing a tool body so as to index the diamonds to the dressing position in order and allow each of a plurality of crystal orientation of the diamonds to coincide with grinding wheel rotation. CONSTITUTION:A plurality of diamonds D1, D2...Dn are stuck being equally spaced in the same orientation on the periphery of a disk shaped tool body 2. The tool body 2 is rotatedly indexed by driving a bolt 16 into one of a plurality of the tapped holes 5a formed on a tool holding member 5 through the hole 6a of an index plate 6 to position the diamonds D1, D2...Dn in order on the dress position of a grinding wheel 4. In the next step the crystal orientation of the diamond rotatedly indexed to the dress position is indexed so as to coincide with the rotation direction of the grinding wheel 4 by driving a bolt 17 into the tapped hole 3a of a holder 3 through one of a plurality of holes 7a formed on a second index plate 7 to make it possible to dress the grinding wheel 4 allowing the diamonds to keep definite dressing ability and giving them a definite period of life.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a grinding wheel correction device for a grinding machine or the like.

<Conventional technology> A grindstone correction tool with an octahedral diamond weight attached to the tip is used to correct the grindstone, and like a normal weight, the position is changed as appropriate when wear occurs. .

<Convergence point to be solved by the invention> In the case of an octahedral diamond, as shown in Fig. 1, the crystal direction A in the plane direction is hard to wear, and the crystal direction B in the angular direction between the faces is abraded. Easy to do.

Since abrasion resistance differs depending on the crystal orientation, the dressing performance differs depending on the position of the diamond, resulting in differences in sharpness. There is also the problem that the dress lifespan is different.

Furthermore, since the dressing area is a single point, it wears out quickly, requiring the dresser to be replaced in a short period of time.

<Means for Solving the Problems> The present invention provides a grinding wheel correction device that solves the above-mentioned conventional problems, and its characteristic configuration is that a plurality of grinding wheels are arranged on the circumference of a circular tool body. The diamonds of the face piece are fixed at equal intervals in the same crystal direction, and each diamond can be rotated and indexed to a dress position with respect to the grindstone by placing the tool body in the holder, and at the rotation index position, the crystal direction of the diamond is aligned with the rotation of the grindstone. It is attached so that it can be indexed to match the direction.

<Function> In the present invention, when the p-less life of the diamond indexed to the dressing position with respect to the grindstone is confirmed, the tool body is rotated to index a new diamond to the dressing position, and the diamond is indexed to the dressing position. The extracted diamond is indexed in order so that its plurality of crystal directions coincide with the rotational direction of the whetstone to dress the whetstone.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. In FIG. 1, the diamond is an octahedral diamond having the aforementioned crystal direction A1B. In Figures 2 and 3, 2
is a disk-shaped tool body, and the diamonds 1 are fixed on the circumference of this tool body 2 at equal intervals in the same crystal direction A%B.

As shown in FIGS. 4 and 5, the tool body 2 is arranged such that each diamond DI, D2, . . . , and is mounted so that it can be indexed so that the crystal direction A%B of the diamond 1 coincides with the rotational direction of the grindstone at the rotational indexing position.

Specific examples of the above-mentioned rotational indexing and indexing means will be explained with reference to FIGS. 4 and 5. 5 is a tool holding member;
It is attached to the holder 3. The tool body 2 is attached to the tool holding member 5 by screwing the bolt 16 into one of the plurality of threaded holes 5α formed in the grindstone 4.
1, D2--D3 can be rotated and indexed to the dressing position of the grindstone 4.

The tool holder #5 is attached to the holder 3 so as to be rotatable around an axis lj [D] that passes through the apex of the diamond l indexed at the dressing position and is orthogonal to the rotational axis E of the grindstone 4. By selecting one of the plurality of holes formed in the plate 7 and screwing the bolt 17 into the threaded hole 3αlζ of the holder 3, the rotation of the grinding wheel 4 is performed so that the crystal direction A%B of the diamond which is rotationally indexed to the dress position is determined. It can be indexed to match the direction.

Since the present invention is configured as described above, each diamond D1. When the dressing life of the diamond Dt at the dressing position with respect to the grinding wheel 4 in D2...Dn is confirmed by experimental values, dressing resistance, grinding resistance after dressing, etc., the tool body 2 is moved by the first indexing plate 6. It rotates around axis 0 and indexes a new diamond D2 to the dressing position.

The diamond D2 indexed at this dress position is indexed by the second indexing plate 7 so that the crystal direction AI-Az-Aa-A4 of the diamond 1 shown in FIG. By changing the dressing conditions of crystal directions 81 to B4 so as to have the same dressing performance as crystal direction Al-A4, crystal direction AI-Bt -A2-B
It is also possible to index and dress as 2...-A4-B4. Note that dressing is performed by traversing the holder 3 parallel to the grindstone axis.

FIGS. 7 and 8 show other embodiments of the present invention. In this case, a cup-shaped tool body 2e1 is used, and four diamond ε throats l are arranged at equal intervals and in the same crystal direction on the circumferential edge of the tool body 2α. Further, a tool holding member 9 is attached to the holder 3 so as to be rotatable around an axis B0 that is colinear with the rotation center O of the grindstone 4, and a support shaft 8 that is integral with the tool body 2α is attached to the tool holding portion #9. Axis line 0 of tool holding part #9
The supporting shaft 8 is fitted with grooves 12 corresponding to the number of diamonds 1 at equal angular intervals.

Furthermore, the axis 1 of the tool body 2a is attached to the tool holding portion #9.
One end has a groove 12j for rotational indexing and positioning.
An index plate 11 is provided in which four holes 13 are formed at equal angular intervals in order to index and position the tool holding member 9 in rotation about the zero axis. By screwing the bolt 5 into the screw hole 14 formed in the holder 3 through the hole 13, the diamond 1 is removed.
The tool holding member 9 can be fixed in a state where the crystal directions A and B of the grinding wheel 4 and the rotational direction of the grindstone 4 are made to coincide with each other.

In other embodiments as well, by rotating the tool body 2 around the axis F, each diamond Dl...Dn on the circumferential line of the tool body 2α is indexed to a dressing position with respect to the grinding wheel 4, and at this dressing position. The crystal directions M to A4 and B1 to B4 of each of the indexed diamonds Di, fist, and Dn are indexed to coincide with the rotational direction of the grindstone 4 by rotating the tool holding member 9 around the axis 0.

<Effects of the Invention> As described above, according to the present invention, a circular tool body in which a plurality of diamonds are arranged on the circumference at equal intervals in the same crystal direction is sequentially indexed to a dressing position with respect to a grinding wheel. Since the structure allows indexing so that the multiple crystal directions of the diamond at the dressing position coincide with the rotational direction of the grinding wheel, dressing can be performed after and at a certain dressing life, and the peak of the diamond can be adjusted to the maximum. It can be used effectively for as long as possible, and the frequency of replacement becomes much longer. Further, the diamond replacement operation after the life of the dress can be easily and quickly performed.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing the crystal direction of octahedral diamond.
Fig. 2 is a partial side view of the tool body according to the present invention to which a diamond is attached, Fig. 3 is a view taken in the direction of the arrow 1 in Fig. 2, Fig. 4 is a cross-sectional side view of the main part of the device of the present invention, and Fig. 5 is the same. 6 is an explanatory diagram of the indexing order of each crystal direction of diamond, FIG. 7 is a sectional side view of the main part showing another embodiment of the device of the present invention, and FIG. 8 is a diagram showing the same procedure. It is an explanatory diagram of operation. 1...Diamond, 2.2α...Tool body, 3.
... Holder, 411... Grindstone, 5... Tool holding member,
6...first indexing board, 7-fist/second indexing board, 8
...Fist support shaft, 9...Tool holding member.

Claims (1)

[Claims] Multi-faceted diamonds are fixed on the circumference of a circular tool body at equal intervals in the same crystal direction, and the tool body is placed in a holder in a dress position with respect to a grindstone so that each diamond can be rotated and indexed. A grindstone correction device characterized in that it is mounted so that it can be indexed so that the crystal direction of the diamond coincides with the rotation direction of the grindstone at the removal position.