JPH07285072A - Dressing tool for grinding wheel - Google Patents

Abstract

PURPOSE:To prevent the scattering of separate abrasive grains or the like out of a grinding wheel from occurring in time of dressing this grinding wheel. CONSTITUTION:In this dressing tool 11 for a grinding wheel provided with a dressing part 13 to do a job for dressing the grinding wheel, in a dressing tool body part 12, an encloasing part 14 for preventing the scattering of separate abrasive grains or the like in dressing operation is installed in and around the dressing part 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a double-headed grinder, a side grinder, a flat grinder, a centerless grinder,
It is attached to a grinding machine such as a surface grinder, and grinds a work piece with a myriad of sharp abrasive grains while rotating at high speed, and makes the grinding wheel blunted in order to finish this work piece with a beautiful finished surface and the correct size. Grinding that is used to remove the abrasive grains to create a new abrasive grain cutting edge, eliminate clogging, and in some cases intentionally form the abrasive surface of the abrasive grain to the desired shape according to the desired finished surface. The present invention relates to a dressing tool for a grindstone.

[0002]

2. Description of the Related Art Grinding wheels have abrasive grains (which act as a cutting edge and have a main function of scraping a work piece), a binder (which functions to bind and hold the abrasive grains), and pores (which serve as abrasive grains). It is formed between the binder and it helps to escape the chips in the voids.) It is composed of three elements, and while rotating at high speed, the work piece is sharpened by the countless sharp abrasive grains and beautiful. Used for finishing and finishing to the correct dimensions.

In this grinding wheel, when the abrasive grains are worn during use and the grindability is deteriorated, the abrasive grains are naturally chipped or fallen off so that a new cutting edge is always made to appear and grinding is performed. It has the characteristic of having a so-called self-sustaining effect that it can be continued in almost the same state.

There are various types of grinding wheels such as vitrified type, silicate type, rubber type, bakelite type, resinoid type, magnesia type, and the like, and the abrasive grains are fused alumina, silicon carbide, diamond, and nitride. Although there are those that use boron, etc., although such a grinding wheel has a self-generated effect as described above, it is sometimes possible to grind a workpiece to a target surface roughness etc. In order to remove the blunted abrasive grains and create a new abrasive grain cutting edge, to eliminate clogging, or in some cases, to intentionally shape the cutting surface with abrasive grains according to the desired finishing surface. To form into
Sometimes dressing (or truing) is done.

When performing such dressing (hereinafter, also including the case of truing), a dressing tool having a dressing section and a dressing tool main body section for holding the dressing section is used. For example, a single stone dressing tool in which rough stones such as diamonds, which are the dressing parts, are fixed to the dressing tool body, a forming dressing tool in which the dressing parts are formed in a wedge shape, and a plurality of rough stones such as relatively small diamonds are dressed. As a multi-stone dressing tool fixed to the tool body, a blade type dressing tool with a dressing part in the shape of a blade, a rotary type dressing tool that is a diamond tool with the same shape as the finished product, and a dressing part Such as a block type dressing tool using block is used as the abrasive grains are also used, such as super hard material in addition to the diamond.

[0006]

The dressing of the grinding wheel is performed by pressing the dressing tool against the rotating grinding wheel at a constant angle. Since it scatters into the environment, not only does it pollute the environment, but it also comes into the eyes of workers, which is an undesirable situation in terms of safety.

Therefore, it has been a problem to prevent scattering of abrasive grains and the like during dressing of a grinding wheel.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and prevents the release abrasive grains from scattering from the grinding wheel during dressing of the grinding wheel, thereby improving the working environment. It is an object of the present invention to provide a dressing tool for a grinding wheel which can be maintained as well as safe.

[0009]

SUMMARY OF THE INVENTION The present invention is a dressing tool for a grinding wheel having a dressing tool body for dressing a grinding wheel, wherein a dressing tool such as release abrasive grains during dressing is provided around the dressing section. It is characterized in that it has a surrounding portion to prevent scattering.

In an embodiment of the dressing tool for a grinding wheel according to the present invention, the enclosing portion may be configured so as to substantially surround only the dressing portion, or the enclosing portion may include the entire dressing portion. Alternatively, the main body of the dressing tool may be configured so as to surround the leading end of the dressing tool holding side.

Similarly, in the embodiment of the dressing tool for a grinding wheel according to the present invention, the surrounding portion may be made of a cylindrical body formed of a rigid material or a flexible material. The shape may be a straight shape or a taper shape (conical shape, pyramidal shape, etc.), and in some cases, a structure may be provided in which a discharge port for the separated abrasive grains is provided. Is also possible.

Similarly, in the embodiment of the dressing tool for a grinding wheel according to the present invention, the surrounding portion may be detachably provided on the dressing tool main body, or the surrounding portion may be the dressing tool main body. It is also possible to make it the structure integrally provided in the part.

Furthermore, it is also possible that the surrounding portion has such a shape that the tip thereof comes into contact with the surface of the grinding wheel simultaneously with the tip of the dressing portion.

[0014]

According to the present invention, in a dressing tool for a grinding wheel having a dressing portion for dressing a grinding wheel in a dressing tool main body, it is possible to prevent release abrasive grains or the like from scattering around the dressing portion during dressing. Since it is configured to provide a surrounding portion, to the rotating grinding wheel, when performing dressing by pressing the dressing tool at a constant angle, even if peeling abrasive grains are generated from the grinding wheel, Since the release abrasive grains are blocked from scattering at the surrounding part, the release abrasive grains do not fly off from the part of the grinding wheel, which prevents the deterioration of the working environment and is also useful for improving safety. It will be

Further, since the enclosing portion is provided so as to substantially surround only the dressing portion, an increase in occupied space due to the enclosing portion is avoided, and the scattered release abrasive grains are scattered. It also provides good blocking.

Alternatively, the enclosing portion is provided so as to surround the entire dressing portion and the leading end of the dressing tool holding side of the dressing tool main body, so that the dressing portion can be attached to the dressing tool main body relatively. It can be done easily and robustly.

Further, since the surrounding portion is formed of a tubular body, the surrounding portion can be formed from a conventional pipe or the like, so that the structure is simple and inexpensive.

Furthermore, the enclosing portion is detachably provided on the dressing tool main body so that it can be applied to a commercially available dressing tool, or the enclosing portion can be attached to the dressing tool main body. By providing the enclosure integrally, the enclosure can be provided in a more rigid state, and the enclosure can be set according to the form of the dressing tool.

Furthermore, the enclosing portion has a shape in which the tip of the enclosing portion contacts the surface of the grinding wheel at the same time as the tip of the dressing section, so that the tip of the dressing section is pressed against the grinding wheel during dressing. Since the tip of the enclosing part is in contact with the grinding wheel, the release abrasive particles from the grinding wheel are unlikely to leak between the enclosing part and the grinding wheel, and the release abrasive particles are scattered. Will be prevented even more reliably.

[0020]

Embodiment 1 FIG. 1 shows an embodiment of a dressing tool for a grinding wheel according to the present invention. The dressing tool 11 for a grinding wheel has a straight portion 12a, a flange portion 12b and a taper portion. The dressing part 1 is provided at the tip of the dressing tool body 12 having the taper part 12c.
The present invention is applied to a commercially available dressing tool for a grinding wheel in which No. 3 is fixed, which is made of low carbon steel and has a flange portion 12b of the dressing tool main body portion 12.
Cylindrical portion 14a having an inner diameter slightly larger than the outer diameter of
The stepped portion 14b along the side surface of the flange portion 12b and the surrounding portion 14 having the fixing portion 14c having an inner diameter slightly larger than the outer diameter of the straight portion 12a are bolted to the straight portion 12a of the dressing tool main body portion 12.
It shows a case where it is fixedly provided to the device, and is detachable by loosening the bolt 15.

As shown in FIG. 2, when the dressing tool 11 for a grinding wheel having such a structure is used to dress the grinding wheel G, the grinding wheel G rotating at a high speed in the direction of arrow A is used. The dressing tool 11 is pressed at right angles.

As a result, peeling abrasive grains or the like are generated from the grinding wheel G, but since the peeling abrasive grains or the like are blocked by the surrounding portion 14 whose tip is in contact with the grinding wheel G, they hardly scatter. It will be.

In one example of practice, when a commercially available dressing tool for a grinding wheel was used as it was for dressing the grinding wheel G, after the dressing was performed 6 times a day, the recovery amount of the abrasive grains and the like on the working floor was 110 g. On the other hand, when the dressing tool 17 for the grinding wheel provided with the enclosure 14 shown in FIG. 1 was used, it was only 4 g, and the amount of abrasive grains scattered per day was larger than that in the conventional case. 9
It was possible to reduce by 6%.

Embodiment 2 FIG. 3 shows another embodiment of the dressing tool for a grinding wheel according to the present invention. The dressing tool 21 for a grinding wheel has a straight portion 22a and a tapered portion 22c. The dressing portion 23 is fixed to the tip of the dressing tool body 22 on the side of the taper portion, and the flange portion 24b is formed on the back surface side of the taper portion 22c, and the tubular portion 2 is orthogonal to the flange portion 24b.
The case where the surrounding portion 24 is provided by forming 4a is shown.

Even with this structure, the release abrasive grains and the like generated from the grinding wheel during dressing are
Since it is blocked by the surrounding portion 24, the scattering of grinding abrasive grains and the like at the time of dressing is prevented.

[0026]

According to the present invention, in a dressing tool for a grinding wheel provided with a dressing portion for dressing a grinding wheel in a dressing tool body, it is possible to prevent release abrasive grains or the like from scattering around the dressing portion during dressing. Since the surrounding part is provided, it is possible to prevent the release abrasive particles from scattering from the grinding wheel during dressing of the grinding wheel, so that the work environment is kept good and the release abrasive particles are It has a remarkable effect that safety is improved without fear of getting into the eyes.

[Brief description of drawings]

FIG. 1 is a side view of a broken portion of a surrounding portion showing an embodiment of a dressing tool for a grinding wheel according to the present invention.

FIG. 2 is a side view of a broken side view of a surrounding portion showing a state in which dressing of a grinding wheel is performed using the dressing tool for a grinding wheel of FIG.

FIG. 3 is a side view of a broken portion of a surrounding portion showing another embodiment of a dressing tool for a grinding wheel according to the present invention.

[Explanation of symbols]

 11,21 Grinding wheel dressing tool 12,22 Dressing tool body 13,23 Dressing section 14,24 Enclosure G Grinding wheel

Claims (7)

[Claims] 1. A dressing tool for a grinding wheel having a dressing part for dressing a grinding wheel on a dressing tool body, wherein a surrounding part is provided around the dressing part to prevent release abrasive grains or the like from scattering during dressing. A dressing tool for grinding wheels. 2. The dressing tool for a grinding wheel according to claim 1, wherein the surrounding portion is provided so as to substantially surround only the dressing portion. 3. The dressing tool for a grinding wheel according to claim 1, wherein the surrounding portion is provided so as to surround the entire dressing portion and the leading end of the dressing tool holding portion on the dressing portion holding side. 4. The dressing tool for a grinding wheel according to claim 1, wherein the surrounding portion is a tubular body. 5. The dressing tool for a grinding wheel according to any one of claims 1 to 4, wherein the surrounding portion is detachably provided on the dressing tool main body portion. 6. The dressing tool for a grinding wheel according to claim 1, wherein the surrounding portion is provided integrally with the dressing tool main body portion. 7. The dressing tool for a grinding wheel according to any one of claims 1 to 6, wherein the surrounding portion has a shape such that the tip of the surrounding portion contacts the surface of the grinding stone at the same time as the tip of the dressing portion.